Einstein's gravitational waves 'seen' from black holes

There is a pretty interesting interview of Lawrence Krauss on the topic of this discovery on the most recent podcast episode of Penn's Sunday School. Skip the first hour, they talk about a bunch of stuff before Lawrence arrives, but starting at about an hour and 4 minutes (The final 34 minutes) Krauss explains the complexities of the discovery, it's meaning and how important the discovery is. It's pretty interesting

Episode 207 - Lawrence Krauss Explains Gravity Waves
http://pennsundayschool.com/episodes/