Left: Layla Khaled, one of two hijackers of an American T.W.A. jetliner in Damascus 8/29, smiles after returning to her guerrilla base in Jordan. October 17, 1969.(Getty Images) Right: Khaled speaks at the O.R. Tambo international Airport, on February 6, 2015, in Johannesburg. (Gianluigi Guercia/AFP via Getty Images)