Dirty Bomb Warheads Disappear (washingtonpost.com):
Stocks of Soviet-Era Arms For Sale on Black Market
By Joby Warrick
Washington Post Staff Writer
Sunday, December 7, 2003; Page A01
TIRASPOL, Moldova -- In the ethnic conflicts that surrounded the collapse of the Soviet Union, fighters in several countries seized upon an unlikely new weapon: a small, thin rocket known as the Alazan. Originally built for weather experiments, the Alazan rockets were packed with explosives and lobbed into cities. Military records show that at least 38 Alazan warheads were modified to carry radioactive material, effectively creating the world's first surface-to-surface dirty bomb.
The radioactive warheads are not known to have been used. But now, according to experts and officials, they have disappeared."