The chief of Israel’s Mossad has vowed the intelligence agency will hunt down every Hamas member involved in the Oct. 7 attack on Israel, no matter where they are. David Barnea spoke a day after the deputy head of the Palestinian militant group was killed in a suspected Israeli strike in Beirut. Israel has refused to comment on reports it carried out the killing, but Barnea’s comments appeared to be the strongest indication yet it was behind the blast. (Jan. 4)