There are reports about a package, addressed to Donald Trump, that was found to contain ricin.
The package was intercepted at an off-site mail processing facility earlier this week, and never made it to the White House. The package was tested for the presence of ricin twice.
Both the FBI and the Secret Service are investigating.
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Ricin is a toxin that is manufactured from the castor bean and causes breathing issues, kidney and liver failure and possibly death.