Letter laced with poison targets the White House

buzzz worthy. . .

Ricin-laced mail headed to The Capital and The White House has been intercepted.  The letters tested positive for the poison, which can be fatal when inhaled.

One  letter was postmarked in Memphis addressed to Sen. Roger Wicker of Mississippi.  

The other letter was addressed to President Obama. The sender wrote "to see a wrong and not expose it is to become a silent partner to its continuance," according to a source familiar with an investigation of the incident.

"I am KC and I approve this message," it reads.

Senate Majority Leader Harry Reid told ABC News that Capitol offices were on high alert.  Incoming mail has been halted as the FBI investigates these incidents.

WASHINGTON, DC – On Thursday, April 18, the President and First Lady will travel to Boston to attend Healing Our City: An Interfaith Service dedicated to those who were gravely wounded or killed in Monday’s bombing near the finish line of the Boston Marathon.