The correct answer is true.
It is true that room invasions are a significant security issue for hotels located in CONUS.
CONUS stands for "Continental United States." This means, anyplace inside the United States territory.
And yes, room invasions are a significant security issue for hotels located in the United States territory. Police and military forces are trained to hangle terrorism in hotels, as part of their preparation to fight terrorist groups. Hotel guests also have to follow some security procedures to minimize the possibility of being robbed.