fisa act has been subject to rigorous and constant oversight by all three branches of government. indeed, we regularly report to the intelligence and judiciary committees of both the house and the senate how we have implemented the statute. the operational value it is afforded and the extensive measures we take to ensure that the government's use of these authorities complies with the constitution and the laws of the united states. further, over the past few years we have engaged in an unprecedented amount of public transparency on the use of these authorities. in the interest of transparency and because this is a public hearing allow me to provide an overview of the framework for section 702 and the reasons why the congress amended fisa in 2008. i will then briefly address why 702 needs to be re-authorized