Sarah Zhang

Sarah Zhang

Senior Online Fellow

Sarah Zhang is a senior online fellow at Mother Jones. Before moving to San Francisco, she wrote for Discover Magazine in New York and did research on fruit flies in Israel.

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How Dangerous Is the Lead in Bullets?

| Thu Jan. 3, 2013 1:33 PM PST
smoking gunDon't inhale.

The most ubiquitous danger at firing ranges has a lot to do with bullets but nothing to do with getting shot.

It's all in the lead. A recent report from the National Academy of Sciences found that OSHA lead exposure standards are too lax to protect military firing range employees. Repeated exposure to the toxic metal causes a raft of health problems including brain damage, high blood pressure, and anemia.

Lead is found in bullets as well as the explosive that ignites gunpowder. When a bullet is fired, it gets so hot that that lead actually vaporizes. Firing range employees breathe in the lead fumes, as well as ingest lead dust that settles on their body and clothes. OSHA sets the permissible level of atmospheric lead at 50 micrograms/meter2, but the report found that level frequently exceeded at military firing ranges, sometimes by several orders of magnitude.

The new report also finds OSHA's blood lead level recommendation of 40 µg/dL or lower to be too high. That limit hasn't changed since 1978, but subsequent research has found health problems at blood lead levels as low as 5 µg/dL. Lead is so damaging because it mimics calcium, an ion with essential roles everywhere in the body from bones to nerve cells. (It's especially dangerous for children with developing brains, which is why you hear so much about lead paint.) The report devotes more than 70 pages to detailing lead's many toxic effects in nearly every organ in the body, including the brain, blood, kidneys, heart, and reproductive organs.

How can firing range workers reduce their exposure? The most direct solution is switching to lead-free ammunition or at least jacketed bullets, which have a lead core covered with a coating made of copper or nylon. Lead has been traditionally favored because of its density, but the military has since developed lead-free ammunition that reportedly works just as well.

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Conservatives React to the Newtown Shooting

| Fri Dec. 14, 2012 2:55 PM PST

As news broke of the Newtown school shooting, horror and grief transcended party lines. But for some conservatives, the shooting—and the ensuing calls for reassessing gun policies—also presented a political challenge. Some notable tweets:

Some suggested that the fix is not fewer guns, but more:

Ann Coulter:

Chris Loesch, husband of conservative commentator Dana Loesch:

In just the past four years, the NRA has helped pass weaker gun restrictions in 37 states, making the weapons easier to own, carry and conceal. At the same time, the number of mass shootings has increased in America.*

Mike Huckabee, former Arkansas governor and GOP presidential candidate, told Fox News the shooting happened because "we removed God from our schools. (h/t ThinkProgress)

HUCKABEE: Ultimately, you can take away every gun in America and somebody will use a gun. When somebody has an intent to do incredible damage, they’re going to find a way to do it… People will want to pass new laws, but unless you change people’s hearts, they’re our transition to the pastor side. This is a heard issue, it’s not something, laws don’t change this kind of thing.

CAVUTO: How could God let this happen? 

HUCKABEE: Well, you know, it’s an interesting thing. When we ask why there is violence in our schools, but we’ve systematically removed God from our schools. Should we be so surprised that schools have become a place for carnage because we’ve made it a place where we don’t want to talk about eternity, life, responsibility, accountability? That we’re not just going to have to be accountable to the police, if they catch us. But one day, we will stand in judgment before God. If we don’t believe that, we don’t fear that.

Bryan Fischer of the American Family Association took a similar tack on his radio show today, claiming that God has abandoned our schools because prayer is no longer allowed. 

Fischer tweeted this too:

Blogger Mike Vanderboegh offered an elliptic Biblical reference on his blog, quoting a Wikipedia article about the ancient Ammonite god who demanded child sacrifices. 

Conservative radio personality Steve Deace took to his Facebook page to complain about politicizing the tragedy while also blaming public schools.

 

Deace wasn't the only one who lashed out against people who speaking against gun laws. Michelle Malkin's aggregator account, Twitchy, offered this:

Rush Limbaugh struck a related note on his radio show

And even as we speak, the Drive-By Media and the Democrats are attempting to politicize the issue to advance their own agenda. In this case, probably an assault on the Second Amendment again. I guarantee you that they are overturning everything they can in their quest to be able to blame this on Republicans. This, to them, is an opportunity.

Conservative news site Townhall reacts to New York mayor Michael Bloomberg's call for gun control legislation by saying this:

I'm going to have some class and avoid this political fight today, but it's important to show what Bloomberg is saying and now pushing for in the wake of tragedy.

(After the Aurora shootings, our colleague Adam Serwer weighed in on why national tragedies are political.) 

Brandon Darby, an one-time radical leftist turned FBI informant had yet another takeaway:

NewsBusters, which is devoted to responding to liberal media bias, hasn't addressed the shooting at all on its homepage. This screenshot was taken at 3:45 PM PST. 

And the NRA? It has been silent since this tweet, just before news of the Newtown shooting broke.

Meanwhile, The Daily Caller's Tucker Carlson has moved on:

Correction: An earlier version of this article incorrectly stated that gun violence has increased. 

8 Drones That Aren't Out to Kill You

| Thu Dec. 6, 2012 4:13 AM PST

A new flock of drones is taking flight in America's skies, and they are here to help. Really. Unmanned aerial vehicles (UAVs), a.k.a. drones, are ready to take over jobs that are too dangerous or simply too boring for human pilots. What's holding them back, until 2015 at least, are FAA regulations that bar the commercial use of robot aircraft.

Government agencies and state universities are already using drones in ways that do not include secretly tracking and killing people. Eventually we may have FedEx drones or even personal taco delivery vehicles. But in the meantime, here are eight cool things drones can already do:

Farming: The Japanese have used robo-crop-dusters for decades, but those FAA regulations have kept ag limited to government sponsored projects. That could change when the FAA allows the commercial use of drones in 2015. Farmers and ag programs are gearing up for drones that can monitor the growth of crops as well as the drones like the crop dusters used in Japan. And with the shortage of skilled ag pilots, drones could very well swoop in.

Chasing storms: Since 2007, NASA has owned a pair of Global Hawks, the same UAVs used by the military to spy on foreign countries. Fitted with instruments to monitor clouds, winds, and temperature, the Global Hawks can hang out where few human pilots want to—in the middle of a hurricane. In September, a Global Hawk spent nearly two weeks monitoring the life cycle of the bizarrely long-lived Hurricane/Tropical Storm Nadine. NASA scientists hope to use the drones to glean insights into how hurricanes form, especially now that climate change has made superstorms a more pressing problem. (Check out NASA's website for an interactive view of the Global Hawk—with bonus action music!) 

Photo of Tropical Storm taken from a Global Hawk aircraft. NASA/NOAAPhoto of Tropical Storm Frank taken from a Global Hawk NASA/NOAA

Catching poachers: When you're trying to track poachers across thousands of acres, it helps to have eyes in the sky. The World Wildlife Fund has tested a fleet of small, hand-launched, camera-equipped drones in Nepal. And the WWF just won a $5 million Google grant to implement a drone-based poacher surveillance system in Asia and Africa. 

Watching the environment: The scientists who came up with the WWF drones have already used them to monitor orangutans and deforestation in Indonesia. The US Geological Survey also has a whole office devoted to drone projects. Its aircraft have monitored invasive species in Hawaii, crane migration, and a dam removal in Washington. Most of these projects involved Raven A drones retired from the army.



Going into the danger zone: In the first weeks after the Fukushima nuclear disaster, when radiation levels near the plant were too dangerous for humans, in flew an 18-pound robot called the Honeywell T-Hawk. The T-Hawk sent back videos of stunning devastation. Drones are no stranger to danger. BP has tested quadrotor drones in its oil fields, inspecting rigs while outmaneuvering gas flares that occasionally burst into fireballs.

 

Looking for trouble: Officers of the Montgomery County Sheriff's Office with their Shadowhawk drone. Vanguard Defense IndustriesThe Montgomery County Sheriff's Office's Shadowhawk drone Vanguard Defense Industries Not surprisingly, law enforcement agencies are quite interested in getting their hands on drones. The Customs and Border Protection Agency has been using them for several years. Last year, one of its Predator Bs helped track down cattle thieves in North Dakota, leading to the first drone-assisted arrest in the United States. Last year, the Montgomery County Sheriff's Office in Texas became one of the first local police departments to buy its own drone. It cost $300,000; compare that to the $3 million price tag for a helicopter. But police drones bring up a whole host of privacy concerns. And safety concerns as well: Montgomery's relatively simple drone crashed into a SWAT team during a photo op.

Protecting human rights: On the flip side, some activists have suggested drones can be used to monitor human rights violations. The cofounders of the Genocide Intervention Network have argued that drones should be used by human rights organizations to document violence in Syria, where the government has tried to silence journalists with targeted killings

Journalism: Old-school newsgathering was based on shoe-leather reporting; are drones the future of journalism? Matt Waite of the Drone Journalism Lab at the University of Nebraska-Lincoln thinks so. The lab has used footage shot by drones to report on the Midwestern drought, and a drone has documented protests in Poland. But drone journalism remains legally dicey, at least until the federal ban on commercial drones is lifted in 2015. The FAA investigated The Daily in 2011 for flying a drone over natural disasters in Alabama and North Dakota. But journalists can still dream about having the ability to grab scoops from above.

Well, anybody got a spare drone we can use?

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