Didn't the Iraqi's actually manage to knock out one M1 Abrams tank - using a "Kornet" (sp?) russian anti-tank missle. I remember reading about that it was a surprise that the Russians actually let them have any of these missles as they are brand new. Something about using a doubled shaped charged warhead to defeat the active armor of the M1 - the first shaped charge is disrupted by the active armor, then the second goes off and punches thru the armor. Unfortunately it seemed to work pretty well on at least one of our tanks.
Everything I've heard from REPUTABLE sources (e.g. Jane's) indicates that NO anti-tank guided missiles (let alone Kornets, none of which were found in Iraq) scored hits on M1 series tanks in Iraq. There were ZERO catastrophic kills of the M1s in Iraq. However, there were "mobility kills" due to wheel/track/engine damage, and some that were damaged or broke down were destoryed in place and abandoned in the rush of the initial offensive. RPGs were mostly worthless, except for an occasional lucky mobility kill.
It is certainly possible that the Iraqis got off a couple of shots that got missed in the shuffle, war being what it is. But an AT-14 Kornet wouldn't be likely to do much against an M1, since an M1
doesn't have the reactive armor that the Kornet is designed to defeat... it has a distant relative of the Chobham armor invented by the Brits, which is practically invulnerable to HEAT round, tandem or not. It would be worthless against the frontal or turret armor of an M1, and would only be good for a mobility kill against the engine compartment or running gear. It sure could kill a Bradley real good, though.
There was a friendly fire incident where a Bradley's 25mm cannon firing DU rounds penetrated an M1's engine compartment and damaged the engine. According to Jane's total losses were 14 damaged and 2 destroyed.
Don't get me wrong, the M1A2 isn't invulnerable. Like every tank, it has thinner armor on the sides, rear, and roof, and its running gear and engine compartment are vulnerable to attack. But, unlike older tanks, its frontal arc is practically invulnerable to anti-tank guided missiles or tank cannons.