I've always followed it, removed them from my 1 quart zip top bag at screening, etc. My travel mate, a couple times forgot to remove his bag at a couple airports, but nothing was said or done. The last time he went through multiple screenings, with a oversized zip top bag, clearly not 1 quart with various liquids, and other bathroom goods, sometimes he took it out sometimes not, but never had a problem. Every time I went through, they put me through the nude a scope thing. One time they wouldn't even let me hold my money. I gotta start a new thread for this one.