The U.S. currently maintains stockpiles of close to 30,000 tons (yep, tons! Count 'em!) of "chemical agents" including Sarin and other nerve gasses that it admits to (and who knows how many additional tons that it doesn't publicly admit to) much of it leaking and endangering civilian populations, as the folks near Umatilla in Oregon, Tooele in Utah, the leaking Army WETEYE nerve gas canisters in Denver, Colorado, and other locations across the country can attest.

If mere possesion is a crime, we'd damn well better get the U.S. invaded and occupied ASAP- if only to protect its own citizens.