Local ABC television affiliate KVUE-TV news led off tonight with a breaking report of a "suspicious white powder" found on a sorting machine at the main post office here in Austin, Texas. (This is the post office on Cross Creek, not the one downtown.) The powder was found around 8:15pm local time. The post office has been evacuated, first responders are on the scene, and the postal inspectors are on their way. Preliminary tests have come back positive for a protein in the powder. More when I hear more ...