felt in this country, and a lot of people concerned about whether they're safe or not. there are 104 nuclear reactors operating in the united states providing roughly 20% of this nation's electricity. president obama now calls for the nuclear regulatory commission to review the safety of all nuclear facilities. >> when we see a crisis like the one in japan, we have a responsibility to learn from this event and to draw from those lessons to insure the safety and security of our people. that's why i've asked the nuclear regulatory commission to do a comprehensive review i of the safety of our domestic nuclear plants in light of the natural disaster that unfolded in this japan. jon: joining us now is michael wallace, vice chairman and chief operating officer of constellation energy. what's your take on that announcement from the president, this commission to review nuclear operations? >> well, we welcome very much the opportunity for the nuclear regulatory commission to oversee the levels of preparation that we've taken to be able to deal