BEIRUT Hezbollah 's leader delivered a defiant speech on Wednesday, saying Israel cannot impose conditions for a truce in Lebanon , as visiting U.S. envoy Amos Hochstein headed to Israel to try to negotiate an end to the war. Israeli Foreign Minister Gideon Saar, in a near-simultaneous statement, said any ceasefire deal must ensure Israel still has the "freedom to act" against Hezbollah. Hochstein said in Beirut that he would head to Israel on Wednesday to try to seal a ceasefire agreement in