An envelope reportedly sent to Senator Roger Wicker (R-MI) tested positive for a potentially lethal substance. Politico has the details:
An envelope sent to an office of Sen. Roger Wicker (R-Miss.) included a substance that has tested positive for Ricin, two sources say.
It was not immediately clear when the envelope was received or whether it was sent to his Washington, D.C., office or a field office.
Homeland Security Secretary Janet Napolitano and FBI Director Robert Mueller are briefing senators now.
So what exactly is Ricin? Well, according to the Centers for Disease Control and Prevention, it’s...