ISTANBUL Canadian photojournalist Valerie Zink has resigned after eight years with Reuters, criticizing the news agency’s stance on Gaza as a "betrayal of journalists" and accusing it of "justifying and enabling" the killing of 245 journalists in the Palestinian enclave. “At this point it's become impossible for me to maintain a relationship with Reuters given its role in justifying and enabling the systematic assassination of 245 journalists in Gaza,” Zink said Tuesday through the US social