Hugh Pickens writes "PBS reports on a proposal of arming Syrian rebels with a force equalizer to make a decisive blow against Bashar al-Assad's ruling regime — an idea that has so far failed to take hold inside the Obama administration because of serious concerns about flooding a troubled region with dangerous weapons that someday might fall into the wrong hands. Could sophisticated weapons, such as anti-aircraft missile systems, be outfitted with mechanisms that would disable them if they fell into the wrong hands? According to military analyst Anthony Cordesman the U.S. could modify Stinger anti-aircraft missiles and anti-tank weapons with batteries that cease functioning in a few weeks or months or the weapons could be built to require authentication codes before they are enabled to work. "I think it would be relatively decisive," says Cordesman. ... Another idea is to install GPS-disabling devices so that Stinger missiles only worked in a designated geographic area, such as only in Syria. Such weapons, it is believed, might tip the balance in favor of the rebels in the same way that Stinger anti-aircraft missiles, provided by the United States to the Afghan Mujahedeen, helped expel the Soviet Union from Afghanistan. Cordesman stressed that this type of weapon would have to be thoroughly tested to make sure the controls work and could not be undone. 'You could not transfer these types of weapons without these types of protections. You simply have no way to know where they would end up, how they would be transferred, what would happen to them.'"