GO FLO! – Ted Koppel follows the exploits of 90-year-old Florence Meiler, a record-setting American decathlete.AMERICA DECIDES – Robert Costa has the latest political news following the Republican National Convention and a look at what may be ahead.ROCK STAR – Seth Doane introduces us to the marble sculptures of Italian artist Jacopo "Jago" Cardillo.HAIL CAESAR! – We take a second look at Mo Rocca's trip to Mexico and the home of the Caesar Salad, created 100 years ago.TRUNK SHOW – Faith Salie has a primer on elephants, the symbol of the Republican Party.CHILDREN OF GAZA – Tracy Smith reports on efforts to help the children of Gaza, thousands of whom have been badly injured and killed in the war with Israel.A SUMMER SONG: BRUCE SPRINGSTEEN – Jim Axelrod talks with Bruce Springsteen about how he wrote and recorded his classic Nebraska album more than 40 years ago.