[Straight Vermonter]

FDR called in gold during the Great Depression, although it was mostly voluntary

Anything done because they risk prosecution otherwise can not really be voluntary.

[Kackikat]

http://www.forbes.com/sites/greatspeculations/2013/04/05/governments-still-heavy-handed-80-years-after-fdrs-gold-confiscation/

What I meant was no one went door to door and collected it at gun point, it was basically voluntary although ordered.