saddam hussein used against the kurds in ninety one which of course the us cited as part of its w m d arsenal and does a justification for the iraq invasion that my friends is what you call circular logic and somehow the us does not define do you lead or mercury as hazardous well despite the government denying the obvious the evidence is undisputable multiple studies show the same correlation between contamination for munitions and the epidemic of congenital birth defects in southern iraq the most disturbing part of all about wanting to use the radioactivity never goes away it will play one generation after the next for millions of years we're going to fortunately there is nothing we can do to stop these devastating health effects from playing now but i'll tell you what we can do we can demand that this practice be banned and insist on holding those responsible accountable. when you have no way to live. when you don't have a family. when you have no one to ask for help you can always count on. this man is respected by criminals and also it is a like the old soundex going to make sure that it

it is as much or more energy that was in the combined arsenals of the united states d the soviet unionseight of the cold war. that could plausibly end civilization. nobody has the mod to tell you exactly what the threshold is. when you're talking about tens of millions of mega tons you're putting civilization at risk. >> i'm hearing that we're relatively optimistic that we can develop systems at the right price points to detect asteroids of this size with a sufficient amount of lead to to be able to do something about its. >> that is size range that we've lready detected 93%-94% of asteroids of that size range that could come close to the earth. in that size range, we can be reasonable -- reasonablely assured to go forward and be able to detect them with right a bit of notice. > let's scale it down to medium-large size asteroid, what cities would that be? >> it could be in a range of 50 meter diameter with energy in the range of 5-50 mega tons. >> what kind of systems could detect that? you're talking about more assets in our orbits, telescopes of that kind, including those this could g