Did an envelope addressed to the White House contain cyanide?
It’s going to take a third round of testing after the initial biological testing came back negative but a follow-up test found a “presumptive positive” for the deadly poison, the Secret Service said.
The New York Times reports that the letter was found in an off-site facility where White House mail is screened.
The Secret Service declined to further discuss the issue.
In early 2013, a Mississippi man sent a ricin-laced letter to President Obama, Sen. Roger Wicker and Mississippi judge Sadie Holland. He was sentenced to 25 years in prison, The Times wrote.