Glad to hear that she's been released - it seems like she was doing unpaid household work in exchange for food and lodging and should not have been allowed into the US on VWP in the first place if she was truthful about that. Waste of taxpayer money and a horrible experience for her to keep her locked up instead of just letting her get on a flight home, but the fact that the detention happened at a land border probably complicated things. Canada found out that she planned to do unpaid work there too and did not let her in, US asked why Canada did not let her in and the story unraveled.