Hopeful Obama wants to speak to them, no pre-conditions:

Arutz Sheva reports:

Al-Watan reports that American intelligence had learned that Mughniyeh arrived in Damascus three days earlier with instructions from, and in coordination with, the Iranians. His objective was to meet with Hizbullah leaders and coordinate a mass attack, for which he was to receive help from Syrian intelligence.

The American involvement in the killing is explained as being in retaliation for a recent car bomb attack that targeted a U.S. Embassy vehicle; three passersby.

Another Kuwaiti newspaper, Al-Siasa, reports that Mughniyeh took part, shortly before he was killed, in a secret meeting in the Iranian School in Damascus. Also participating in the meeting were Syrian Intelligence Chief Gen. Aisaf Shwackath, Hamas chief Khaled Mashaal, and an Islamic Jihad representative. On the agenda: planned attacks in Arab countries that refuse to take part in the coming Arab League summit in Damascus. The newspaper entertains the possibility that the meeting was merely a camouflage for Syrian involvement in Mughniyeh's killing.