They already have - with the usual management BS one is to expect these days:
In a letter to employees on Friday, Robert Isom, chief operating officer, wrote that "USAPA has embarked upon a smear campaign that in reality is all about contract negotiations, not safety.
"I can tell you unequivocally the union's claims are outlandish, false and a disservice to the 32,000 hard-working employees of US Airways," Isom wrote. "Safety has been and always will be the top priority at US Airways, as it is at any airline."
As you suggest, this is not even close to answering it effectively.