For Biden, Sinwar’s death injects uncertainty — but also an opening — into possibly resolving Gaza conflict

​ For months, frustrated American officials looking to end the war in Gaza have mused quietly about the one scenario they believed could loosen deadlocked ceasefire talks: the death of Hamas leader Yahya Sinwar, believed to be hiding deep underneath Gaza in the group’s network of tunnels. Read More Breaking News, Latest News and Videos | CNN