NEIL ARMSTRONG: That's one small step for man, one giant leap for mankind.
STEVE INSKEEP, HOST:
Let's remember the man who spoke those words on the moon. Neil Armstrong died on Saturday after a lifetime that inspired many people, including Neil DeGrasse Tyson, director of New York's Hayden Planetarium who is on the line. Good morning. Welcome back to the program.
NEIL DEGRASSE TYSON: Yeah, good morning. Thanks for having me back.
Republicans have decided to delay the official start of their presidential nominating convention until Tuesday. Tropical Storm Isaac is causing weather-related issues around Tampa, Florida. As the convention is about to begin, polls show GOP presidential candidate Mitt Romney is tied with President Obama.
Florida has so far been spared the worst of Tropical Storm Isaac. Mississippi, Alabama and Louisiana cannot be so sure. If the storm stays on its current course, it threatens to hit Louisiana seven years to the day after Hurricane Katrina arrived in New Orleans. NPR's Greg Allen is tracking the storm. He's on the line from Florida this morning.
Greg, good morning.
GREG ALLEN, BYLINE: Morning, Steve.
INSKEEP: How much damage was there from Isaac in Florida?
John Walker Lindh was a middle-class kid in Northern California who converted to Islam and went to travel the world. U.S. authorities eventually captured him in Afghanistan after Sept. 11, when he was allegedlyfighting alongside the Taliban.
His story was the focus of a Law and Order episode, and a song called "John Walker's Blues" by Steve Earle.
For the past fiveyears, Lindh has been living in a secret prison facility in Indiana with convicted terrorists, neo-Nazis and other inmates who get special monitoring.
After a month-long offensive in Aleppo, Syria's largest city, rebels are struggling under a fierce counter offensive by the Syrian military and the outcome is far from clear. But the future of Aleppo, the country's financial hub, is already under discussion in secret meetings on the Turkish border.
Over cups of sweat tea in a Turkish border hotel, Moeihmen Abdul Rahman, a lawyer from Aleppo, sits down for his first meeting with Abu Riad, a commander from the Al Tawheed brigade, a coalition of rebel militias leading the assault on Aleppo.