Barack Obama sent a deadly letter

The FBI and White House confirmed a deadly letter thought to contain ricin sent to Barrack Obama. The letter was intercepted Tuesday hours away from the Boston explosions in an office away from the White House where all mail to the Obama is well screened.

Another letter addressed to Senator Roger Wicker postmarked Memphis, Tennessee was also intercepted and confirmed to have contained the poisonous substance ricin. Ricin is a naturally occurring protein, found in the castor oil plant, which is highly toxic. It can be inhaled or ingested but it is most dangerous when it is injected.