Slightly different but directly relevant: http://en.wikipedia.org/wiki/Holder_v._Humanitarian_Law_Project http://en.wikipedia.org/wiki/Holder_v._Humanitarian_La

Slightly different but directly relevant: http://en.wikipedia.org/wiki/Holder_v._Humanitarian_Law_Project http://en.wikipedia.org/wiki/Holder_v._Humanitarian_Law_Proj... http://www.supremecourt.gov/opinions/09pdf/08-1498.pdf http://www.supremecourt.gov/opinions/09pdf/08-1498.pdf tl;dr: it's illegal to advise terrorist groups how to peacefully advocate for human rights, because that might make them more legitimate