Details about three separate terrorism cases are coming to light. In Illinois, an American man who converted to Islam was arrested after allegedly attempting to detonate what he thought was a bomb outside an Illinois courthouse. In Texas, a Jordanian national was arrested; officials say he was attempting to place what he thought was a car bomb in a parking garage in Dallas. We speak with Evan Perez of the Wall Street Journal, who is covering both.

We also speak with James Meek, national security reporter for The New York Daily News, for an update in the case of Najibullah Zazi. Federal officials say he received explosives training from al-Qaida and had intended to build bombs for attacks on US soil.

Long wait times and primary care physician shortages have patients increasingly turning to what are called retail health clinics, operated by stores like Target and CVS and intended to treat minor ailments.  A new study shows that the clinics may be less expensive than a doctor's office, without sacrificing quality of care. We speak with Dr. Ateev Mehrotra, lead author of the study by the Rand Corporation. Dr. Mehrotra is also a professor at the University of Pittsburgh Medical School.

What should bankers be paid and how much money should banks be required to keep on hand? Those are among the questions on the table as leaders from the world's 20 largest economies meet in Pittsburgh today. Our guest, MIT professor Simon Johnson says, don't get your hopes up for meaningful economic regulation. Johnson is also senior fellow at The Peterson Institute for International Economics.

David Wroblewski's debut novel is the story of a teenager, Edgar, who can hear, but can't speak. He spends a lot of time helping his family raise and train dogs. His idyllic life on a farm in central Wisconsin comes to an end when his father suddenly dies. The book is now out in paperback and we rebroadcast our conversation with its author.