please state your name before ddressing your question. >> christian, german press agency, d.p.a. good afternoon. i have one question for the president obama, barosso. first on russia and ukraine. given that the u.s. has less to lose from economic sanctions gainst russia, would it be visit support for european allies. for example in the realm of energy? second you mentioned all three, the transatlantic trade and investment partnership. citizens have concerns, they fear that standards for environment protection or consumer protection might be at stake. how do you want to convince the citizens? thank you very much. >> with respect to sanctions, so far what we have seen is excellent coordination between the united states and europe. vr european allies. for example in the i think on both sides of the atlantic there was recognition that in the initial incursion into crimea we had to take some ery specific steps and we did, identifying individuals that were in part responsible for those actions. when the russian government made e decision to annex crimea after after a referendum that no

one is the one your honor and justice sotomayer were ddressing. another is the requirement that this particular program be focused on these area specific air-quality impacts. there are three central features of the psd statute that we think show that. the first is section 7471. which is on page 1380. that explains what psd refers to. 470 one says the program consists of emissions limitations as may be necessary to prevent significant deterioration of air quality in each region. that bears certain designations. the clean air act language for that sub set of air pollution problems that has regionally defined affects on the air that eople breathe. >> there are many statch utes, i believe, particularly in the regulatory area, where congress d.ls the agency a, b, c, and they it turns out there are so many regulatory -- regulations it doesn't make sense to apply hem all. for example, if there were a statute that said you have to throw out all bubblegum that has been around for more than a month, what about bubblegum used in a display case that nobody in