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Reexamining renowned architect Philip Johnson

The idea of a star architect may have began with Philip Johnson. Johnson died in 2005, but we still live in the shadows of his skyscrapers and people still visit his infamous home, The Glass House. A new biography, "The Man in the Glass House," looks at the life of the controversial architect who was both loved and loathed in his lifetime. Anthony Mason reports.

Climate change: Capturing carbon may be key

Monday marks the 49th Earth Day. Despite decades of warnings from climate scientists, the world is still struggling to cut CO2 emissions, the main driver of climate change. Now, a handful of researchers and private companies are trying to fill in some of the gaps with what were once considered fringe ideas. Brook Silva-Braga reports.

U.S. Capitol is getting a Johnny Cash statue

Johnny Cash may soon be immortalized in marble in our nation's capital. Each U.S. state gets two representatives in the National Statuary Hall. This month, Arkansas's governor signed a bill that will swap out his state's statues. Dana Jacobson reports.

Notre Dame: $1B may not cover rebuilding

Pope Francis presided over Good Friday services at St. Peter's Basilica in Rome. The day commemorates the crucifixion of Jesus Christ and is the most solemn day on the Catholic calendar. In Paris, a spokesman for the fire department says Notre Dame is now stable after the massive fire that all but gutted the cathedral. Roxana Saberi reports.