A revised Republican bill to raise the US debt ceiling, cut spending and avert a federal default is set for a crunch vote in the House of Representatives on Thursday. But House Speaker John Boehner's bill faces a conservative revolt, unanimous opposition by Senate Democrats and a White House veto threat. Overseas investors are worried that Congress might remain gridlocked past the Tuesday deadline to raise the debt limit. There are other international implications of the debt battle. Lisa Mullins talks with Justin Fox, Editorial Director of the Harvard Business Review Group.