Experts expect final action during summer months
Bill lacks language on 'Don't Ask,' DOMA found in House measure
Letter says Congress needs time to review new guidance
SECDEF will move ahead if service chiefs give the OK
Carney says 'process is moving' for open service
SECDEF set to leave position at June's end
Bill reaffirms DOMA, could disrupt 'Don't Ask' repeal
Service conducts training session to prepare for open service
Thousands wave flags, cheer outside White House
W.H. official says 'Don't Ask' must be repealed first