Preliminary tests indicate that letters sent to President Obama and to Sen. Roger Wicker (R) of Mississippi were laced with the potentially deadly poison ricin. They were postmarked Memphis, Tenn.
Canada earthquake: Parliament building in Ottawa evacuated. Workers also left buildings in Toronto
Canadian earthquake, centered at the Quebec-Ontario border, was a 5.0 magnitude temblor and was felt as far south and New York City and New Jersey.