The overall article and discussion here is detection, and all the weaknesses of detection. At some point, the only solution will be active destruction. Someone

The overall article and discussion here is detection, and all the weaknesses of detection. At some point, the only solution will be active destruction. Someone will build something like a multi-wavelength high powered laser device to sweep the room. Arrive, setup the device near the center of the space, set the Start-Timer, leave, return in 3min confident and optical detectors are well fried. I hope it doesn't come to that, but...