follow the feel of the whistleblower loses his battle against extradition to sweden and britain supreme court santelli supporters are mentioning the need and the u.s. to face espionage charges in the making of american diplomatic cables. up next we're bringing you the disturbing story of how the u.s. military used highly toxic herbicide chemicals and vietnam and even a devastating legacy. the u.s. air force kept detailed records of the spray missions that began in one thousand nine hundred sixty one and continued for ten years these voluminous records were used to create maps and calculate the extent of the spring thirty years after the war and. one of the things that we did when we created the street graphic information system was to create a way in which you could take these tens of thousands of flight legs of a of a plane and translate them into what happened on the ground and we can tell you in any one grid had much was sprayed had many direct hits we also got files from the national archives of where people live where the hamlets were that i could actually put how many people lived in each of tho