“The C.I.A. director, William J. Burns, met in Warsaw on Monday with Israeli and Qatari officials for talks aimed at restarting hostage and prisoner exchanges, according to U.S. officials. Under a weeklong truce between Israel and Hamas last month, 105 hostages were freed in exchange for the release of 240 Palestinians from Israeli jails before negotiations broke down and the war resumed on Dec. 1. Since then, American officials have pushed various proposals aimed at continued humanitarian releases or other exchanges. Pressure for another agreement has mounted in recent days, after the Israeli military said on Friday that its soldiers had fatally shot three unarmed men who turned out to have been hostages. Hamas had not released any videos of its hostages since before the exchanges began. But on Monday it posted one on social media showing three older men, one of whom pleaded for their release. Resuming talks has been complicated, with deeper differences over the terms of further exchanges. After the deal fell apart, a U.S. official said publicly that Hamas “reneged” on an agreement to release all female hostages. A Hamas official said it considered some of the remaining female hostages to be soldiers.”