All In with Chris Hayes 09/05/13

Click 3: We learn who baby panda's father is

Chris Hayes shares the three most awesomest things on the Internet for September 5: 1) Norweigan duo Ylvis debuts a new single "The Fox" that is sure to give you an unwelcome earworm. 2) A new program called "Wedding Crunchers" allows you to search key ... more Duration: {{video.duration.momentjs}}