On Wednesday Israeli Prime Minister Ehud Olmert told Mitchell that the cease-fire between Israel and Gaza would hold only if Hamas -- which rules Gaza -- ends weapons smuggling into Gaza and halts rocket fire into Israel.
While no official cause of the crash has been named, sources have told CNN that 150 of the oxygen generators -- improperly packed and stowed in the DC-9's cargo hold -- are believed to have ignited the fire that brought down the plane.
"The real question is whether the cease-fire will hold, how long it will hold, and whether it can be used to build upon and improve the situation and crisis, " said Haim Malka of the Center for Strategic and International Studies.