Live Headline 22-Apr-03 10:49 ET MSNBC reports that white powder found at mail distribution center in Tacoma, WA : Some reports that initial tests suggest that powder is some type of biotoxin. Authorities expect it to take at least another hour to identify powder. Live Headline 22-Apr-03 11:01 ET Initial tests of powder reportedly indicate botulism and plague : sorry if you guys saw this already..but thought it was worthy of a post C.