The TSA said it reached out to bag manufacturers this year to design laptop cases that would provide a clear, unobstructed image of the computer as it passed through an X-ray machine. The agency said the new bags will be available for purchase this month.  To qualify as "checkpoint friendly," a bag must have a designated laptop-only section that unfolds to lie flat on the X-ray machine belt and contains no metal snaps, zippers or buckles and no pockets.