bin Laden: Avoid the Arugula

One more reason to stay away from the salad bar.

According to a Monday CBS report receiving much attention today, al Qaeda terrorists have talked about poisoning salad bars and hotel buffets at various U.S. hotels and restaurants over a single weekend. Department of Homeland Security officials have deemed the threat as a "credible" one.

The plot, uncovered earlier this year, is said to involve the use of two poisons - ricin and cyanide - slipped into salad bars and buffets. Of particular concern: The plotters are believed to be tied to the same terror group that attempted to blow up cargo planes over the east coast in October, al Qaeda in the Arabian Peninsula. In online propaganda, al Qaeda in the Arabian Peninsula has praised the cargo attack, part of what it called "Operation Hemorrhage."