Three congressional offices as well as some media organizations, including Fox News, have received threatening letters recently. On “Special Report” last night Bret Baier reported that Fox News headquarters in New York received one such letter. The warning threatened that some envelopes could contain a lethal pathogen and would bear a return address from “The MIB” postmarked Portland, OR.

The letter to Fox News was from a Portland, OR address. It was secured and the NYPD was called. They advised that the letter appeared to be harmless. Letters were also sent to Comedy Central hosts Jon Stewart and Stephen Colbert.