Arab Spring: 10 unpredicted outcomes"America is struggling with problematic relationships with rebels in Syria."
Not really, it offered rhetorical support, and shits on them. That is a problem, not problematic.
"Shia Iran and Sunni Saudi Arabia are now effectively fighting a proxy war in Syria."
No, there is a democratic rising against a sectarian supported tyrant who has always made out, with the help of much of the world's media, that the rebels have only sectarian motives to remove his murderous régime. The The Iranians have been offering thousands of troops in support of the massacres of Sunni civilians, the Saudis have offered limited support to the freedom fighters, limited enough that they can be outstripped by the privately-financed al-Qaida linked brigades.
They might also mention in 8. how sexual violence has been used by the Assad régime as a weapon of war.