1.   Hong Kong officials said customs agents will inspect every soft-top cargo container and that carbon-dioxide and heat detectors will be used to search for stowaways.

2.   Remember the recent case in which cops aimed a heat detector at a home without a warrant?

3.   Firemen used heat detectors to search for her in the mud, but found nothing.

4.   Heat detectors and other equipment were used to scan the site for a second time, and would continue to probe the debris as excavation progressed into the night.

5.   The court explored the same equation in arguments involving the heat detector.