U.S. District Court House for the Eastern District of New York in Brooklyn currently on lockdown because of a letter with suspicious white powder and labeled ‘anthrax.’ The quarantine is apparently restricted to the first floor of the building.
It’s important to note that there has been a rash of these mailing since Boston and the ricin mailings incident. To the best of my knowledge, all have been hoaxes or at least non-toxic substances. So bear that in mind.