The Emmy Award-winning "CBS News Sunday Morning" is broadcast on CBS Sundays beginning at 9:00 a.m. ET.

"Sunday Morning" also streams on the CBS News app beginning at 11:00 a.m. ET.

( Download it here .) Hosted by Jane Pauley COVER STORY: GM's CEO on electric vehicles: "This is one of the most exciting times in our industry" Correspondent Kris Van Cleave talks with Mary Barra, General Motors' second-longest-serving CEO, about the company's expanding electric vehicle lineup. He also takes a "high-speed" tour of GM's Milford Proving Ground in Michigan, which has been a hub for automotive innovation for a century, and gets behind the wheel of GM's soon-to-be-released electric Cadillac Escalade IQ.

For more info: gm.com GM: Electrification GM Milford Proving Ground ALMANAC: September 22 "Sunday Morning" looks back at historical events on this date. ARTS: How Mad Magazine's humor created a revolution Mad Magazine began in 1952 as a comic book that made fun of other comic books – and soon became an institution for mocking authority in all spheres of life, from TV, movies and advertising, to politicians and parents.

Correspondent David Pogue visits a new museum exhibition celebrating the humor of Mad, as created by the artists and writers who called themselves "the usual gang of idiots." For more info: Mad Magazine Exhibition: "What, Me Worry? The Art and Humor of Mad Magazine," at the Norman Rockwell Museum, Stockbridge, Mass. (though October 27) | Exhibition magazine Cartoonist .