Opposition figure joined Islamic leaders in condemning proposed policy that comes amid accusations of ethnic cleansing.
Thein Sein becomes the first Myanmar president to be welcomed to the White House in almost 47 years.
Move comes day President Thein Sein due to leave for a landmark visit to the U.S.
Many displaced Rohingya refuse to leave because they don't trust Myanmar authorities.
The dark side of the nation's celebrated transition to democracy coming at the expense of minority Muslims.
Sectarian violence erupted in March, causing 44 deaths and displacing an estimated 13,000 people.
Taking no chances after four days of mob violence led by Buddhist monks killed 44 people.
Buddhist-led violence displacing thousands, destroying mosques and homes.
Closest sectarian clashes between Muslims, Buddhists has come to commercial capital Yangon.
Release is the latest in a series of amnesties decided by reformist President Thein Sein.