It might not be the worst thing to happen to AA employees, but I'd caution you to look at the numbers before becoming giddy over a tiny profit sharing check.
In 2010, average employee wages at US were $55,800; at AA, average employee wages were $63,900. AA's average wages are $8,100 higher than at US.
In 2010, average pilot wages at US were $110,200; at AA, average pilot wages were $139,900.
In 2010, average FA wages at US were $40,400; at AA, average FA wages were $50,500.
Benefits? In 2010, average benefits per employee at US were $16,900; at AA, average benefits were $31,400.
That's what three bankruptcies will do to wages and benefits. And even with bargain basement wages, the best US could do last year was a tiny profit in 2011 of just $111 million, of which the employees earned $12 million in profit sharing, or an average of $375 per employee. Considering wages that are thousands less than AA wages, on average, that $375 doesn't begin to make a dent in the wage deficit at US. It's a very low-wage airline. Their employees aren't thought of as bricks - their substandard pay is what made AA's employee wages look so high by comparison. The prior bankruptcies have made the US employees as light as a feather compared to the heavy burden of AA wages and benefits.
Merely integrating the pilots would increase US pilot wages enough to more than wipe out last year's meager profit of $111 million.