I am travelling overseas tomorrow and will be bringing two new in box MBA's with me for friends of mine. I know that I am definitely allowed to carry them on, however I was worried about going through security. Will TSA allow the boxes themselves in the X-Ray or do I have to take them out of the box? If it's the latter, I think I would rather check them in with luggage to keep them sealed but I run the risk of getting my luggage lost/stolen. Does anybody have any experience with this? Any tips would be appreciated. Thanks ahead of time.