Where do we begin? First off, there's a civil war going on. No one's brought up if troops will be needed to protect the inspectors as they go about their work.
Then there's the matter of where the weapons will be taken, and how.
The Russian-U.S. plan mentioned the possibility of collecting and destroying them in the coastal area of Syria, which is under government control. But who would protect the convoys headed there? Will the regime fully cooperate? And will rebels agree to a cease-fire as the weapons are being moved?
The U.S. and Russia say they're working on the details. They say they'll submit something in the next few days.
Given these mammoth challenges, how feasible is it that all stockpiles can be destroyed by mid-2014?
That's a question worth asking. To put things in perspective, U.N. inspectors who were searching for Saddam Hussein's stocks of chemical weapons crisscrossed Iraq for seven years in the 1990s. They had unrestricted freedom of movement. And even though they were dealing with an obstructive regime, at least they were not trying to work during a war.
How current is our intelligence about where these sites are? What if Syria's moved its stash?
In a way, Syria is on the honor system, especially since both U.S. officials and Syrian rebels suspect the regime has been moving around parts of its stockpile. "I think we may know where they were, and we may know where maybe a majority are now," Kay says. "But look, it's going to be up to the Syrians to disclose where they are and the amounts that they have."
Last week, Gen. Salim Idriss, head of the rebel Free Syrian Army, said he had information that the regime has started to move chemical weapons and materials into Lebanon and Iraq. Iraq denied the allegation, calling it "cheap propaganda."
So, the ball's in Syria's court -- so to speak. What if it doesn't comply?
Remember that resolution we talked about earlier that the Security Council is trying to draft? It allows for use of force to compel Syria to cooperate.
But Russia's against that, right?
Yes, Russia has veto power. And it's consistently said it won't stand for military strikes on its ally Syria.
In that case, what happens?
The U.S. might go it alone. That option's not off the table. "If diplomacy fails, the United States remains prepared to act," President Barack Obama has said. Kerry reiterated the point Monday: "The military option is still on the table."
Finally, is the situation on the ground any better?
Unfortunately, no. The bloodshed hasn't stopped for a day. At least 91 people were killed across Syria on Sunday, including six children, the opposition group Local Coordination Committees of Syria said. CNN cannot independently verify daily death tolls, but the United Nations says more than 100,000 people have been killed in Syria since 2011.