An envelope sent to the White House earlier this week has tested positive for cyanide and further tests will be carried out to confirm the finding . The letter was addressed to President Barack Obama, but it is not clear if he received it. Authorities say its sender has been mailing packages to the White House since 1995 including ones covered with urine and filled with alcohol .
An envelope sent to the White House earlier this week has tested positive for cyanide and further tests will be carried out to confirm the finding . The mail handler suffered no injuries and there were no exposure concerns . Authorities say its sender has been mailing packages to the White House since 1995 including ones covered with urine and filled with alcohol .