story -- charles babington of the associated press, doyle mcmanus of the "los angeles times," karen tumulty of the "the washington post" and kate zernike, of the "new york times." >> this is "washington week with gwen ifill" produced in association with national journal. corporate funding for "washington week" is provided by. >> we know why here -- we're here, to connect our forces to what they need when they need it. >> help truth see danger before it sees them. >> to answer the call of the brave and bring them safely home. >> around the globe, the people of boeing are working together to support and protect all who serve. that's why we're here. >> i'm an engineer. my kids say i speak a different language, but i love math and math and science develops new ideas. we've used hydrogen in our plants for decades. the old units were very large. recently, we were able to reduce that. our scientists said, what if we could make it small enough to produce and use hydrogen on board a car, this could significantly reduce emissions and increase fuel economy by as much as 80%. >> corporate funding is al