I'll just add something briefly about Lebanon.
The official statistic now is that a fourth of the population in Lebanon is Syrian refugees, and that's considered a modest number. I think that Lebanon is a very good example of a country that could be significantly affected by the Syrian refugees, because it's on the brink now, and it has been on the brink for a long time, since the Syrian war began. Will Lebanon be drawn into this?
I think it's absolutely incumbent upon western governments to deal with the refugee crisis in Lebanon, because we don't want Lebanon to become another falling state.
The UN is completely overloaded in Lebanon. There are children all over the streets of Beirut—Syrian refugees—who basically beg and steal, not for their families in most cases, but to send money back to organizations in Syria. There are smugglers and this sort of thing.
It's a serious problem on many different levels, because it's affecting the Lebanese economy. It's affecting political stability in Lebanon. It's really draining the country and it is a cause of further instability.