] NEAR KARBALA, Iraq, March 31 -- As an unidentified
] four-wheel-drive vehicle came barreling toward an
] intersection held by troops of the Army's 3rd Infantry
] Division, Capt. Ronny Johnson grew increasingly alarmed.
] From his position at the intersection, he was heard
] radioing to one of his forward platoons of M2 Bradley
] Fighting Vehicles to alert it to what he described as a
] potential threat.
]
] "Fire a warning shot," he ordered as the vehicle kept
] coming. Then, with increasing urgency, he told the
] platoon to shoot a 7.62mm machine-gun round into its
] radiator. "Stop [messing] around!" Johnson yelled into
] the company radio network when he still saw no action
] being taken. Finally, he shouted at the top of his voice,
] "Stop him, Red 1, stop him!"
]
] That order was immediately followed by the loud reports
] of 25mm cannon fire from one or more of the platoon's
] Bradleys. About half a dozen shots were heard in all.
]
] "Cease fire!" Johnson yelled over the radio. Then, as he
] peered into his binoculars from the intersection on
] Highway 9, he roared at the platoon leader, "You just
] [expletive] killed a family because you didn't fire a
] warning shot soon enough!"

A Gruesome Scene on Highway 9 (washingtonpost.com)