McCrystal and Petreus are nothing more than corrupted politicians in uniforms.  

They got their commands confirmed by a notoriously corrupt senate led by a known criminal.

Their stupid EIB badge is pretty much the equivalent, or lesser so, of a boy scout badge.

They swear to uphold the constitution except for the parts they don't like, i.e. the first and second amendment.

They are ideologically aligned with domestic enemies that have taken control of Mordor on the Potomac.

I guess in trying to answer my own question, I have no doubt that the military and law enforcement "leaders" would give the execution orders.  Then it just becomes a matter of how many of the their Eichmanns will carry out the orders.

It doesn't look good!