In the United States and several other countries, removing laptops from backpacks for individual verification on X-ray machines is a common practice. Fortunately, Transportation Security Administration (TSA) recently determined that gadgets and netbooks do not need that special attention.
And today's new thing: the new 11.6-inch MacBooks Air fall into that category!
This means that owners of Apple's new ultraportable laptop do not need to remove it from their backpacks when boarding flights. Another that entered the cake was the iPad, for similar reasons.
The 13.3-inch version of the MacBook Air is still a doubt, but it will most likely be released by TSA because it is also very compact and does not have a built-in optical drive.