Sony Pictures cancels Dec. 25 release of 'The Interview'
Health care exchange sign-ups exceeding last year
Top theater chains cancel 'The Interview' showings
Lawsuit over immigrant license data
Obama: As a black man he's been mistaken for valet
3 injured in Los Angeles shooting; suspect at large
Johns Hopkins mistakenly welcomes wrong students
Immigrants get closer to having driver's licenses in Arizona
Key dates in US relations with Cuba
'7th Heaven' actor Stephen Collins: 'I did something terribly wrong'