Clues with definition and fodder (minus deletions) highlighted, indicators emphasised and substitutions = replacements indicated.

ACROSS : How to tackle an evil regime?
= USA bombs Iraqi victims

2. Bush's heart, and a nation of violence... (1.1.1.)

3. ...blindly lead deranged mobs to missiles. (5)

5. (From backward IQ a riddle: which dictatorship to attack?) (5)

6. Cruise Missile visit "restructuring" sufferers. (7)

DOWN

1. USA has leading military and assorted technological tackle (but without the French= le), an excuse for everything, ... (5,6)

3. ... seething sore = boil(in gulf leader) ... (7)

4. ... so what sense is Micah 3:1-11 providing in relation to earth-shattering events? (7)