Does Guantanamo Bay have a cancer problem? Seven civilians and military members have been diagnosed with cancer, three of those people were military lawyers and they’re dead. They ranged in age from 35 to 52 and have died in the last 13 months. Turns out the barracks/sleeping quarters on top of an old airfield/landing strip. And if you know aeronautics, then you know that some, if not most, jet fuels contain certain carcinogens and other toxic substances.