ISTANBUL The call by PKK 's imprisoned leader Abdullah Öcalan for the terrorist organization to lay down arms has sparked global reactions and made headlines in the international press, with several countries welcoming the historic appeal. U.N. Secretary-General Antonio Guterres welcomed Öcalan's call to dissolve the terrorist group, calling it a "glimmer of hope, which would lead to a resolution of a long-standing conflict,” according to his spokesperson, Stephane Dujarric. The White House