For a company that still hasn't fully merged its workforces since it's last acquisition almost seven years ago, the first thought is that this is one determined, single-minded outfit, isn' it? US Airways pulled a rabbit from its hat with the news that it has the support of three of American's unions for a merger of the carriers as AMR comes out of bankruptcy protection. All the details are in a full Inquirer Nussbaum story, reposted here for its archival value. Read into it to see what US Airways' own pilots and flight attendant unions, still waiting on new contracts, as well as American, have to say. Also, here is American's first-quarter earnings report.