Fronteras: It's been 150 years since the U.S. Army forced the Navajo and Mescalero Apache to walk 400 miles to a prison camp in eastern New Mexico in an attempt to wipe out their culture. "The Long Walk's" impacts are still felt today. Supporters of same-sex marriage have seen recent victories in the past few weeks. Now some Arizona couples are pushing for change. Also, a climatologist gives us the latest drought picture across the Southwest.