An IAEA team visits the site of an alleged nuclear weapons facility bombed by Israel in September.
Its improved standing poses challenge to US policy of isolation.
It was uniquely positioned to broker a deal this week between warring factions in Lebanon.
The agreement gives Hezbollah and the opposition allies of the Shiite militants enough control in the government to have veto power over legislation.
A panel discussion Tuesday in Doha, Qatar, was dominated by the perception that the Western media hypes up tensions by focusing too much on the minority of radicals.