Ghosts

I watched an episode of Destination Truth in which they went to Ukraine. They were in the city where the Soviet Union had tested nuclear power and it exploded. The town is evacuated and has been for 25 years but is still radioactive. Wearing their suits and walking around the town during day and night with thermal imaging cameras and digital devices looking for ghosts. They even saw some people on the thermal from across the town (when obviously no one would be there).