Florida Republican Congressman John Mica offered the following morally clear Amendment (5/25/2011-H.AMDT.318 (A018) Amends H.R.1540):

Amendment requires that the rules of engagement [ROE] allow any military service personnel assigned to duty in a designated hostile fire area to have rules of engagement that fully protect their right to proactively defend themselves from hostile actions.

The results? (tallied here):

143 out of 185 Democrats present -- 77% -- voted against this amendment; 217 out of 235 Republicans present -- 92% -- voted for it.

As for the two Republicans in Congress running who are Presidential candidates, Michele Bachmann voted for the amendment; Ron Paul against it.