Plot to bomb a D.C. hotel?

You have probably heard by now that the FBI has arrested Farooque Ahmed for plotting to bomb several metro stations, all of which were in Virginia.  However, the indictment also mentions a plot to bomb a Washington, D.C. hotel, but doesn't mention which one.  Though you'd have to imagine the most desirable for a terrorist would have to be a Penn Quarter hotel.

"Just as we ask the public to remain vigilant about possible terrorists among us, the FBI remains committed to rooting out and dismantling those groups and organizations who seek to cause harm to U.S. citizens," said Acting FBI Assistant Director in Charge John G. Perren.