Americans and Iraqis get engaged

After placing the bait, snipers observed the area around it, Captain Didier said in his statement. “If someone found the item, picked it up and attempted to leave with the item,” he said, “we would engage the individual, as I saw this as a sign that they would use the item against U.S. forces.” (Engage is a military euphemism for firing on or killing an enemy.)

According to an article in New York Times, "Snipers Baited and Killed Iraqis"