Poison Gas Plot near Uncovered near Dallas

Federal authorities this year mounted one of the most extensive investigations of domestic terrorism since the Oklahoma City bombing, CBS 11 has learned.

Three people linked to white supremacist and anti-government groups are in custody. At least one weapon of mass destruction - a sodium cyanide bomb capable of delivering a deadly gas cloud - has been seized in the Tyler area.

ed: hat tip 2Shoes. the story is a week old, and this report is two weeks older. i wonder why other outlets haven't picked this up.