Can I take your number? <a href=" http://www.budas.lt/800-mg-ibuprofen-for-back-pain.pdf#too ">which is better for flu tylenol or ibuprofen</a> As America runs lows on cash there is a risk investors could lose confidence in Washington and stop reinvesting in U.S. government debt. Every Thursday, the Treasury pays investors back about $100 billion that investors immediately lend back to the government, a process known as rolling over the debt.