What should the military do when faced with terrorists who have taken hostages? The answer, according to the Pentagon, may be to give the bad guys some Valium. In recent years, the military has been researching the possibility of using "club drugs" like Special K and anti-depressants like Prozac as "non-lethal weapons" in counterterrorist and peacekeeping operations. "We need something besides tear gas -- like calmative, anesthetic agents -- that would put people to sleep or in a good mood," explains Susan Levine, research director of the government's Joint Non-Lethal Weapons Directorate. A study for the Marine Corps conducted by Pennsylvania State University concludes that such feel-good weapons are both "achievable and desirable," noting that drinking water spiked with Ecstasy or rubber bullets filled with Zoloft could "produce less anxious, less aggressive, more tranquil-like behavior."