Cutterbug has some good advice, I think. You didn't say anything untrue or even particularly vicious, so don't apologize. He doesn't deserve it.
And as someone thoughtfully reminded me, "Things didnt get as messed up as they are today with one single action, so one single action isnt going to fix it, or doom it. Cut yourself a break and have some hot cocoa!"
undefeated 24 H 24 S's 4, 2, 1 M 5 yrs
"Most of the important things in the world have been accomplished by people who have kept on trying when there seemed to be no hope at all." ~Dale Carnegie