In the following video, Motley Fool industrials analyst Blake Bos takes a question from a Motley Fool reader on Facebook, who asks, "What's your Foolish take on US Airways Group, (NYSE: LCC) and the airlines in general ... buy, sell, hold?" Blake references an article by Fool.com contributor Adam Levine-Weinberg on US Airways' spiraling labor costs in connection with its proposed merger with American Airlines.