Talk of the Nation on KAZU

Photojournalist Danfung Dennis has captured the brutalities of the wars in Iraq and Afghanistan for major publications, including The New York Times, Time magazine, The Guardian and The Washington Post.

Inspired by these experiences, Dennis embedded with the U.S. Marines Echo Company in Afghanistan and created the documentary Hell And Back Again.

Stories about life on Native American reservations often focus on the hardships — alcoholism, drugs, violence and poverty. In Rez Life: An Indian's Journey Through Reservation Life, Ojibwe writer David Treuer strives to capture stories about the beauty of life on Indian reservations.

The U.S. Supreme Court on Wednesday will review the case of Xavier Alvarez — one of the first people to be convicted under the Stolen Valor Act. In a The Washington Post op-ed, George Washington University law professor Jonathan Turley, argues that stolen valor should not be criminalized.

While Western officials believe Iran is seeking to enrich uranium for a nuclear weapon, Iran's leaders contend it is for peaceful purposes only. NPR's Mike Shuster discusses Iran's regional, diplomatic and nuclear goals.

In his book Concrete Planet, author Robert Courland discusses why the concrete first used by the Romans is more durable than the concrete used in most present day buildings. Plus, mineralogist Peter Stemmerman tells us about his invention, Celitement and why it is greener than Portland cement.