Headlines: Average sperm count falls

A massive tornado in Moore, Okla., kills dozens, including children. Also, the National Guard has been called in to search for survivors. A look at what we've been covering on "CBS This Morning."

"CBS This Morning" takes a look back at some of the signs and sounds of the disaster in Moore, Okla.

"CBS This Morning" takes a look at some of the day's headlines from around the globe.

A 200-mile-an-hour tornado kills at least 51 people, including 20 children. Also, the search and rescue operation continued overnight in Moore, Okla., for survivors trapped in the rubble. A look at what we've been covering on "CBS This Morning."

"CBS This Morning" takes a look at some of the day's headlines from around the globe.

Charles Lindbergh, took off from New York aboard his plane, "The Spirit of St. Louis," and headed for Paris - 86 years ago today. Lindbergh became the first person ever to fly solo, non-stop, across the Atlantic. Gayle King reports.