CNN CNN Newsroom March 17, 2013 02:52:00
This far. but our ability to intercept it and stop it is also a tricky, tricky thing to pull off. look at the things we would use for this. two-stage missile, we would launch out of alaska or california releasing something like this. this is called an kill vehicle. it's got the propulsion youtuun around there. it's got an infrared guidance in the nose. it will guide this in to actually smash into that at about 17,000 miles an hour and tear it apart. it does not explode. this is about as big as a refrigerator. it just smashes into it and tears it apart. you can imagine how difficult that is tho...