Will TSA Soon Have Bins Full of Dead Smartphones?

Security screening at airports for certain flights to the United States is about to get even more annoying:

As the traveling public knows, all electronic devices are screened by security officers. During the security examination, officers may also ask that owners power up some devices, including cell phones. Powerless devices will not be permitted onboard the aircraft. The traveler may also undergo additional screening.

Two comments. First: this is new? I remember being asked to turn on laptops and such before business flights in 2002-03. In fact, I distinctly remember one flight where some poor guy was running around in a panic asking everyone if they had a charger for an IBM Thinkpad because TSA wanted him to power it up. I happened to be using a Thinkpad in those days and came to his rescue. But I haven't traveled on business for a long time, so maybe TSA gave up on this years ago.

Second: lots of us have had the experience of having to toss out a bottle of liquid or a pocket knife at a TSA checkpoint. But a cell phone? That's a whole different animal. If TSA starts forcing people to toss their $500 smartphones into a bin, never to be seen again, there's going to be some serious public outrage. Is that really going to start happening?