On Sat, 5 Oct 2013, Monroe L. King Jr. wrote: > Thermal imaging should be able to locate it. Thermal imaging doesn't work underwater, alas. Water is opaque to thermal infrared. There'll presumably be a plume of warm water rising from it, but not a big one, and rising through a couple of miles of ocean will diffuse it pretty broadly. (And any capability that there is for detecting such things is likely to be highly secret, because of the potential applications to remote sensing of nuclear subs, which put out *much* more heat.) Henry Spencer henry@xxxxxxxxxxxxxxx (hspencer@xxxxxxxxxxxxx) (regexpguy@xxxxxxxxx)