In this exclusive story, CBS News chief investigative correspondent Armen Keteyian reports the latest terror attack to America involves the possible use of poisons - simultaneous attacks targeting hotels and restaurants at many locations over a single weekend. A key Intelligence source has confirmed the threat as "credible." Department of Homeland Security officials, along with members of the Department of Agriculture and the FDA, have briefed a small group of corporate security officers from the hotel and restaurant industries about it.

Read the full article at cbsnews.com