From high overhead, an orbiting C-130 Hercules kept the entire estate under constant electronic surveillance, using thermal imagery to mark the position of the students.

He flipped the sight on the rifle to thermal imagery and swept it up the hillside, looking for hiding tangoes but didn't find any.

Neither elaborate choreography nor advanced thermal imagery gave Allen the edge.

They, too, were using thermal imagery and were in contact with the snipers.

Bill switched over to thermal imagery and could see ghostlike images at the top of the ridge.

But there was nothing to see under thermal imagery.

The Russians would have access to thermal imagery for sure and the Chechens might.

A unanimous Court held that the thermal imagery did not violate the accuser's right to be free from unreasonable search and seizure.