1.   But Baker, the Pentagon spokeswoman, said the U.S. government has looked into all reports of live sightings.

2.   Smith sent a letter to Clinton last week urging him to hold off while Congress investigates allegations of live sightings of American prisoners of war.

3.   All the while, they have been buffeted by scores of false reports of live sightings and other rumors.

4.   Dochnal said reports of live sightings of US servicemen were not treated lightly and were given the highest priority.