If you want to do your report from the political angle, there are many sites which can be found on the internet. To get a balanced view of this issue make sure that you visit as many "veteran" sites as government sites. Many of the problems surrounding agent orange have NOT been addressed by the government even after all these years. Many of my fellow warriors who were exposed to this poison are still suffering effects which the governments in their "wisdom" deny.
Have fun in your research - it was a different time - but - some of the same old BS is still being tossed around in Washington DC as a result of exposure to some kind of agent during recent operations.