My new Incase neoprene sleeve for my new MacBookPro 13" says it is airport security friendly. I have googled and googled this question and can't find an answer. Does that mean that I can leave the Mac in the sleeve when going through security? Thanks. By the way I love love love this computer. I've never used a Mac before and I'm 73 and have had few learning curve problems. It's a dream to operate--feel like I have the Mercedes of all laptops.