[tang-soo]

infrared works on heat, how much body heat do they think is left in a dead body laying around for a month??? please...

Infrared is great at detecting recently disturbed ground. If she was buried somewhere in a shallow grave, it will stick out like a sore thumb.

[operation clinton cleanup]

Infrared is great at detecting recently disturbed ground.

A month old shallow grave is not "recently disturbed ground", and even if it was, they would be checking out every rabbit hole and garden on the island. This is a silly attempt to reassure American tourists that they mean business (no pun intended).