CNN spots "ISIS flag" at gay pride parade and quickly summons national security analyst...

CNN observed an "unnerving" sight in London yesterday and took to the air to warn viewers about it. International assignment editor Lucy Pawle called in to report her concerns after spotting a crude attempt to mimic an "ISIS" flag at a gay pride parade. No one else seemed to have noticed the flag, she said -- this was a CNN exclusive. Pawle said she took her concerns to the organizer of the parade, who claimed to know nothing about it. She also consulted police nearby, who also did not seem conc...