• Krista and Kayla Queen attend the Twins Day Festival in Twinsburg, OH on August 6, 2017.

    Seeing double for science

    By Brandon Griggs, CNN
    It's the world's largest gathering of twins — and one big lab for researchers. Twins Days, an annual festival in Twinsburg, Ohio, draws rubberneckers and scientists, who come every summer to study twins' genetics and behavioral differences.
  • People hold flags and wave at passing vehicles to remember the anniversary of the Sept. 11 terrorist attacks from an overpass on Interstate 35 Monday, Sept. 11, 2017, near Melvern, Kan. Area residents began manning the bridge on the anniversary in 2002 and have done it every since drawing about 300 people throughout the day. (AP Photo/Charlie Riedel)

    What defines patriotism?

    By Brandon Griggs, CNN
    We think we know patriotism when we see it. A veteran in uniform saluting the flag, say, or a line of professional athletes standing at attention during "The Star-Spangled Banner." But when one of those athletes kneels, it gets complicated.
  • George Carlin, 1975

    6 times comedy changed how we live

    By Brandon Griggs, CNN
    Like mischievous children, comedians have long pushed boundaries to see what they can get away with. From Lenny Bruce to Ellen DeGeneres, here are six times when comedy broke barriers, shocked audiences and pushed society forward.

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