Ahh, true.  If you guys can make a DC 30 Knowledge (Arcana) check or a DC 25 Knowledge (Psionics) check, you'll recall that the monoliths at the center of Riedran cities can be set to overload and launch explosive gouts of fire at everything nearby, as well as causing the monolith itself to collapse.  A DC 20 Knowledge (Architecture and Engineering) check reveals that such an action would likely level the mission building with minimal damage to the surrounding neighborhood.<br/><br/>(although, obviously blowing up the building isn't a terribly "nice" thing to do)