SOUNDS LIKE GOOD ADVICE

The homemade bomb in Baghdad exploded as a three-Humvee convoy passed through a road tunnel under Tayeran Square, already teeming with Iraqis at 6:45 a.m. The blast, whose concentrated sound reverberated through central Baghdad, lightly wounded two 1st Armored Division soldiers and damaged a Humvee, the division's Capt. Tommy Leslie said afterward.

Local residents said U.S. Army convoys had been repeatedly targeted in the tunnel.

''It's always the same,'' said traffic policeman Adnan Khadim, 43, assigned to the area. ''They should stop using the tunnel.''