A Vancouver, Wash., man accused of sending letters containing white powder to members of Congress fell under FBI scrutiny after his wife told an officer that he laced the envelopes with a mixture of celery salt and corn starch. The FBI focused on Christopher Lee Carlson, 39, after a Vancouver police officer told them about a March 4 interview she had with Carlson's wife about Carlson's recent emotional turmoil, The Oregonian reported. --SNIP-- The sender wanted an "end to corporate money and `lobbying,'" an end to corporate "personhood" and a new constitutional convention. The Associated Press obtained a copy of...