 "Bunker-buster" nuclear weapons are not needed when multiple precision guided bombs can successively deepen a hole until the no-longer-protected structure is reached.Using data collected over US cities by the Army COMPASS and Air Force SPIRITT sensors, JHU/APL target detection algorithms are being applied to urban hyperspectral signatures.The ability to robustly detect unique spectral targets in urban areas denied for ground inspection, with limited ancillary information will assist in the development and deployment of future operational hyperspectral systems overseas.