Detailed text transcripts for TV channel - MSNBC - 20130417:15:31:00
President obama and the letter addressed to senator wicker are being described as quote very similar to each other. i want to bring in pete williams, who's also standing by for us in washington, d.c. and pete, i understand that there was an initial positive test, but there's really no way to know whether it's really ricin until additional testing is done. >> ever since the anthrax mailings, no mail has gone directly to the white house, capitol hill and many other government offices. it's all sent to off site facilities to test it for various things. both facilities gave an initial positive for...