Today, we learn via the Washingtonian that the bomber had originally set his sites on two other locations: Bistro Bis and Aria, the restaurant attached to the Ronald Reagan International Trade Center. Aria is attached to DC's largest office space, which houses high profile institutions like the US Customs and Border Protection headquarters, and is only two blocks from the White House. Likewise, Bistro Bis' proximity to the Capitol and to Union Station is likely what made it a liability.
According to government informants, El Khalifi's original plan was to arrive at Aria at lunchtime with a bomb in his jacket.
Blue pins reflect El Khalifi's original targets.
Red pin is the Capitol, what he allegedly ultimately settled on.
View Amine El Khalifi Alleged Bombing Targets in a larger map.
The suspect is still being held in federal prison in Alexandria.