WASHINGTON — The number of new people signing up for unemployment benefits last week shot up to the highest level in more than two years, fresh evidence of the damage to a national economy clobbered by housing, credit and financial crises. The Labor Department reported that new applications filed for unemployment insurance jumped by a seasonally adjusted 38,000 to 407,000 for the week ending March 29. The increase left claims at their highest point since Sept. 17, 2005, following the blows of the devastating Gulf Coast hurricanes. “This report supports the view that the jobs market is deteriorating toward recessionary conditions,” said T.J. Marta, a fixed-income strategist at RBC Capital Markets. For the full story visit http://www.latimes.com/business/la-fi-econ4apr04,1,6315557.story