Families of Israeli victims of Palestinian militant attacks threatened a legal challenge on Tuesday to the release of hundreds of Arab prisoners in an exchange with Lebanese guerrilla group Hizbollah. The Prisons Service has named 436 prisoners, most of them Palestinians, to be freed in return for an Israeli businessman held by Hizbollah and three Israeli troops presumed dead after they were abducted while on border patrol in 2000. Some Israelis fear the deal could encourage more Hizbollah kidnappings. Representatives of families bereaved by militants say they oppose releasing any of about 7,500 Palestinians jailed by Israel — many in the past three years of violence. Full Story