>> the world got a nuclear wake up call. >> the islamic republic of iran has been building a uranium enrichment facility for several years. >> this is the location that worries the u.s. great britain and france. a secret site. >> the satellite image from january to 2009 it shows the uranium enrichment construction site in iran. as you can see here and here these are the tunnel entrances. >> this is what it looks like today. there has been a doubling of the security perimeter wall. experts say it is too small for any civilian nuclear energy use. >> our conclusion is this has one purpose which is as part of the nuclear weapons effort.