Jon Hamilton is a correspondent for NPR's Science Desk. Currently he focuses on neuroscience, health risks, and extreme weather.

Following the 2011 earthquake and tsunami in Japan, Hamilton was part of NPR's team of science reporters and editors who went to Japan to cover the crisis at the Fukushima Dai-ichi nuclear power plant.

Hamilton contributed several pieces to the Science Desk series "The Human Edge," which looked at what makes people the most versatile and powerful species on Earth. His reporting explained how humans use stories, how the highly evolved human brain is made from primitive parts, and what autism reveals about humans social brains.

In 2009, Hamilton received the Michael E. DeBakey Journalism Award for his piece on the neuroscience behind treating autism.

Before joining NPR in 1998, Hamilton was a media fellow with the Henry J. Kaiser Family Foundation studying health policy issues. He reported on states that have improved their Medicaid programs for the poor by enrolling beneficiaries in private HMOs.

From 1995-1997, Hamilton wrote on health and medical topics as a freelance writer, after having been a medical reporter for both The Commercial Appeal and Physician's Weekly.

Hamilton graduated with honors from Oberlin College in Ohio with a Bachelor of Arts degree in English. As a student, he was the editor of the Oberlin Review student newspaper. He earned his master's degree in journalism from Columbia University, where he graduated with honors During his time at Columbia, Hamilton was awarded the Baker Prize for magazine writing and earned a Sherwood traveling fellowship.

Cokie Roberts a Morning Edition contributor.

At NPR she previously served as the congressional correspondent for more than 10 years. In addition to her work for NPR, Roberts is a political commentator for ABC News, providing analysis for all network news programming.

From 1996-2002 she and Sam Donaldson co-anchored the weekly ABC interview program This Week. In her more than forty years in broadcasting, she has won countless awards, including three Emmys. She has been inducted into the Broadcasting and Cable Hall of Fame, and was cited by the American Women in Radio and Television as one of the fifty greatest women in the history of broadcasting.

In addition to her appearances on the airwaves, Roberts, along with her husband, Steven V. Roberts, writes a weekly column syndicated in newspapers around the country by United Media. The Roberts are also contributing editors to USA Weekend Magazine, and together they wrote From this Day Forward, an account of their more than 40 year marriage and other marriages in American history. The book immediately went onto The New York Times bestseller list, following Roberts' number one bestseller, We Are Our Mothers' Daughters, an account of women's roles and relationships throughout American history. Roberts histories of women in America's founding era --Founding Mothers, published in 2004 and Ladies of Liberty in 2008, also became instant bestsellers.

Cokie Roberts holds more than twenty honorary degrees, serves on the boards of several non-profit institutions and on the President's Commission on Service and Civic Participation. This year the Library of Congress named her a "Living Legend," one of the very few Americans to have attained that honor. She is the mother of two and grandmother of six.