– Just days after David Letterman received death threats from an angry (and apparently confused) jihadist, follow-up program The Late Late Show with Craig Ferguson received a threatening letter from Europe containing a mysterious white powder, reports the AP. Two staffers who came in contact with the substance were held for observation until a hazmat team determined it was harmless. "Ack! Someone mailed my show white powder & claimed it was anthrax," he tweeted. "I'm not a big fan of that sort of thing." Much like Letterman, Ferguson responded with humor, joking that the threat caused him to change several planned jokes about the East Coast earthquake from earlier in the day. "Because the earthquake only scared millions of people on the East Coast," he said in his monologue, "but the white powder did something much worse. It scared me." The LAPD and FBI are investigating.