Memories of a US massacre

TONIGHT'S Timewatch (BBC2, 9pm) makes for uncomfortable viewing.

It turns back the clock more than half a century to the time whenAmerican forces were fighting Communists during the Korean War.

Then it resurrects a bitterly contested argument over allegationsthat US troops committed atrocities there - in particular, oneappalling civilian massacre in some railway tunnels known as No GunRi.

To this day The Pentagon denies official responsibility for thisbut Timewatch this evening argues that just won't wash, supplying newdocumentary evidence and fresh eyewitness accounts of the slaughter.

"The programme reveals that American military commanders …