Their tweet stated they'd be working with other agencies, "federal" can mean military as well as secret service and others.
EXERCISE: Monday morning, June 7, we will be working with our federal, state, and local partners on a routine training exercise on the grounds of the U.S. Capitol. Please do not be alarmed if you see emergency vehicles and low flying helicopters.
Their tweet stated they'd be working with other agencies, "federal" can mean military as well as secret service and others.
EXERCISE: Monday morning, June 7, we will be working with our federal, state, and local partners on a routine training exercise on the grounds of the U.S. Capitol. Please do not be alarmed if you see emergency vehicles and low flying helicopters.
Yes, but THIS was NOT routine.