Muntasir,
Thanks for the quick reply. Did those people get their visa revalidation done in last 8/9 months ( I mean after the Special registration started) ? I know people who are from SR coutries and sent their passports to St. Louis, got denied recently. They were asked for a face-to-face interview at US Consulate abroad.
BTW, if you are palnning to go to Dhaka, make sure you can take atleast couple of months off from your work. That's because they are taking too long to get security clearence.