In his final address, President Bush expresses gratitude for the nation's trust, reminds of ongoing threat from radical islamists.
Lehman files bankruptcy, Bank of America acquires Merrill, Dow plunges 500
Drug cartel executions increasing in Mexico
McCain, Obama spar on economy, leadership
Obama's political war chest awash in cash
Bush thanks nation in farewell
Russia test fires intercontinental missile
Dem's son indicted for Palin email hacking
Financial crisis seen as worst since Great Depression
The perfect St. Paul visit
Democratic congressman admits failing to report income tax
