Metafilter users save two Russian girls from sex traffickers

A reader writes, "Members of ask.metafilter.com rescue two Russian girls from probable sex traffickers in NYC, in real time. You have to read through it to believe it."
My friend and former student K arrived in DC yesterday, along with a friend. She came over on some kind of travel exchange program put together by a Russian travel agency called 'Aloha'. They paid about 3K for this program.

The program promised a job offer in advance, but didn't deliver. They said they would send one via email, but failed there, too.

Her contact in the USA barely speaks English, doesn't answer her calls but does answer mine. He has asked her and her friend to meet in NYC tonight around midnight, with promises of hostess work in a lounge. Yes, I know how horrific that sounds- that's why I am working all possible angles here.

Help me help my friend in DC.