A subcommittee of the Senate Homeland Security and Governmental Affairs committee is holding a hearing on the financial crisis and the Postal Service. (You can watch it live here.) Steve Losey is at the hearing, and he’ll have a longer story later, but I wanted to post a few important quotes; first, Sen. Tom Carper, D-Del., said this in his opening statement: We may well be faced with a situation later this year where the Postal Service asks Congress to raise its borrowing limit or provide direct financial assistance. Those are steps I don’t think we should take. Put another way:…