Lu, I guess you are going to go off the grapes again....
To paraphrase your post then you could have said:
"I found no supporting evidence for my claim that the US Army lied to it's Apache pilots about invunerability and therefore withdraw it unconditionally. Although the Apache was designed to be ballistically tolerant, no one in their right mind would believe it would survive a ZSU-234 engagement".
BTW, the word "invulnerability", is that USA speak for "not vulnerable" or "survivability"?
Robbo and hotzen go back a page and review Nick's three types of weapon environments. That may add to your comments.
Shawn, are you saying that the US Army aviators have been ordered to fly above 500 ft AGL? I guess that MANPADS are not considered a threat then. I have always tried to avoid the small arms envelope - fly 50 ft or less, or NB 2000ft unless you absolutely have to. At 500 ft, they are smack bang in the least survivable height band for SA - sounds like Somalia where they were apparently shot down from 300 ish ft.