http://www.pbs.org/washingtonweek/ In this online-only extra, Washington Week moderator Gwen Ifill and panel discuss:what is the biggest difference between Sen. Obama and Sen. McCain on the economy and does one have more experience than the other? What would happen if Freddie Mac and Fannie Mae disappear?

SelectPlusAP Top StoriesAP Top StoriesThe Associated PressHere's the latest news for Saturday, July 12: Tony Snow dies at 53; Bush says there will not be a federal takeover over of Fannie Mae and Freddie Mac; Cheney to have annual checkup; Investigators pinpoint potential salmonella source.This is A-P NewsMinute. Fox News is reporting that conservative commentator and former White House press secretary Tony Snow has died of cancer. Snow brought partisan zeal and the skills of a seasoned performer to the task of explaining and defending the president's policies. He was 53. INVESTORS MAY BE NERVOUS ABOUT THE FUTURE OF FANNIE MAE AND FREDDIE MAC -- BUT THE BUSH ADMINISTRATION SAYS IT'S NOT PLANNING A FEDERAL TAKEOVER OF THE TWO MORTGAGE GIANTS.TREASURY SECRETARY HENRY PAULSON SAYS RIGHT NOW BOTH NEED BETTER OVERSIGHT -- NOT MORE CASH. ----------------VICE PRESIDENT DICK CHENEY WILL HAVE HIS ANNUAL PHYSICAL THIS MORNING IN WASHINGTON D-C. CHENEY HAS A LONG HISTORY OF HEART AILMENTS INCLUDING FOUR HEART ATTACKS AND QUADRUPLE BYPASS SURGERY. CHENEY'S STAFF IS CALLING THE CHECKUP ROUTINE.------------ AUTHORITIES ARE INVESTIGATING WHETHER A NORTH CAROLINA RESTAURANT IS THE SOURCE OF MULTIPLE SALMONELLA-RELATED ILLNESSES.THE CHARLOTTE-AREA RESTAURANT HASN'T BEEN IDENTIFIED, BUT HEALTH INVESTIGATORS SAY THEY'RE LOOKING AT THE RESTAURANT'S SUPPLIERS AND SEARCHING FOR LINKS TO THE NATIONWIDE OUTBREAK.------------___ ___, The Associated Press with AP NewsMinute.