U.S. military plans to send 4,000 additional Haiti service members to Haiti . Aftershock rattles Haitian ; it 's strongest one since the next few days quake . Death toll estimates range from 200,000 to 200,000 . Monley ship arrives , takes first patients .
U.S. military plans to send 4,000 additional U.S. service members to Haiti . Aftershock rattles Haitians ; it 's strongest one since last week 's quake . Death toll estimates range from 75,000 to 200,000 . U.S. Hospital ship arrives , takes first patients .