the move is expected to free up $850 million for the rest of the fiscal year. the postal service reported $8 billion loss last year and may still run out of mup by the end of the budget year in september. crude oil gained a dollar and quarter today. july futures closed at $95.41. gas dropped a penny overnight. stocks were down for the first time this week. the dow lost 80. s&p 500 gave back eight. nasdaq dropped 18. part three of our series on saving the u.s. economy centers on taxes. some people want lower taxes to stimulate investments. others advocate higher taxes to jep rate revenue. correspondent doug mckelway looks at both sides. 18th century economist smith could not imagine today s stock exchange but he