Please answer this question: Since 1961, with what group have Eric Baker, Sean MacBride, Martin Ennals Dirk Brner, Thomas Hammarberg, Jos Zalaquett, Suriya Wickremasinghe, Wolfgang Heinz, Franca Sciuto, Peter Duffy, Annette Fischer, Ross Daniels, Susan Waltz, Mahmoud Ben Romdhane, Colm O Cuanachain, Paul Hoffman, Jaap Jacobson, Hanna Roberts, Lilian Gonalves-Ho Kang You, Peter Pack, Peter Benenson, Ian Martin, Pierre San, Irene Khan and Salil Shetty been associated?
amnesty international