The Fed's architects said the central bank wanted glass walls, but three Trump appointees felt marble best fit the building's historic character.

The Dirksen Federal Building is reportedly being evacuated amid an incident in the lobby involving a man with a knife, according to law enforcement sources. WGN's Courtney Spinelli has the latest ...

The mayor said federal officials should be aware of what is going on in that building.

The Dirksen Federal Building in downtown Chicago was on lockdown Tuesday morning, according to the Federal Bureau of Investigation.

The Dirksen U.S. Courthouse and other federal buildings were placed on lockdown Tuesday midday as law enforcement personnel responded to a person in the Dirksen lobby who may have had a knife and ...

The FBI and other law enforcement personnel responded to a man in the Dirksen lobby who walked into the courthouse armed with a knife and threatened to hurt himself.

CHICAGO (WGN) — The Dirksen Federal Building and its surrounding streets are back open Wednesday morning after a knife-wielding man entered the lobby Tuesday and demanded to speak to the FBI ...

CHICAGO (WGN) — The Dirksen Federal Building and its surrounding streets are back open Wednesday morning after a knife-wielding man entered the lobby Tuesday and demanded to speak to the FBI ...

LOUISVILLE, Ky. — Reports of an "unattended package" caused a brief stir in downtown Louisville Tuesday morning. The scene unfolded after 9 a.m. near the Mazzoli Federal Building.

Louisville Metro Police confirmed they responded to the building to help the Federal Protective Service with a "suspicious package." Police said the call came in at 8:40 a.m.

The all-clear has been given after a suspicious package was found outside the Romano L. Mazzoli Federal Building in Louisville.

New video obtained by ABC News purports to show the conditions inside a so-called "holding facility" for detained migrants in a federal building in New York City.