With the size and concentration of the mainlines, a strike at the big four (UA, AA, DL, SW) would likely be short, perhaps a PEB ordered with a return to work order. A regional, a strike would be pretty silly. How much real bargaining power does a strike add when replacements wouldn't be hard to find, the planes shuffled over to any contractor, service curtailed or eliminated. How many profitable RJ routes could be flown by a mainline plane with less frequency? How many just dropped? Any RJ strike would hasten the shrinkage of the business.

GF