There are definitely claims that people were coerced to sign I-407 forms (forfeiting their green cards): http://www.scpr.org/news/2017/01/30/68577/lax-immigrati

There are definitely claims that people were coerced to sign I-407 forms (forfeiting their green cards): http://www.scpr.org/news/2017/01/30/68577/lax-immigration-agents-asked-detainees-to-sign-awa/ http://www.scpr.org/news/2017/01/30/68577/lax-immigration-ag...