http://www.airnav.com/fuel/local.html
go to that webpage, type in ORD and search for 100LL. you'll see why you won't want to go there very often. nor to any Signature FBO, which doesn't list it on their website but usually charges a ramp fee just to be there and sometimes won't waive it even if one fills one's tanks.
Yes, when operating out of a TSA'd terminal. including pt135 and pt121 pilots, unless they are scheduled crew with company+airport procedures to fast track them. some terminals still require all people going through the checkpoints to go through the same procedures. don't ask about the illegal immigrant ground service personnel who used faked documents to work for the contractors that deliver food, fuel, empty the toilets, shovel snow, trim shrubbery, fix fences, etc, etc...they often don't go through any checkpoints at all, but don't worry about them. not a problem. ignore the man behind the curtain.
as to the procedures YOU use as captain of your own aircraft - many of my friends and neighbors normally fly with their spouses, so the passenger has had a strip-search already. flying Young Eagles, we're much less invasive. up to you.