Contrary to popular belief in America, there is something more important in the world than whether Ben Affleck will play Batman or Miley Cyrus' performance at the video awards.
This 2+ hour video from C-span is worth your time. Yesterday was a bad day for David Cameron-but it was a great day for democracy. Its also a good primer on the issues in Syria.
http://www.c-spanvideo.org/program/CommonsDeb
If you are pressed for time just watch David Cameron's speech and Ed Milibrand's at the begining.