Doha summit aims to exploit momentum created by death of Hamas leader Yahya Sinwar
Death of Hamas leader Sinwar has not led to change in the hostage situation
Reward inspired by Netanyahu's offer of immunity and safe passage for freeing hostages
Hamas leader’s death exposes difficulties in efforts to reach hostage deal
Netanyahu, DM Gallant and President Herzog praise security forces who killed Hamas leader
British lawmakers sanction Iran for April attack, publicize threat to UK