Twenty years after Princess Diana died in a tragic car crash, CNN's senior international correspondent Clarissa Ward examines the events and circumstances surrounding her 1997 death. This report explores the lesser-known moments of the princess' journey and shares intimate details from interviews with some of her closest friends and those near to her on the night of her death, some of whom have never spoken publicly on the subject before.

North Korea has shown the world its missiles and military might; the rest of the country remains veiled in secrecy; exclusive and unprecedented access; Will Ripley returns to North Korea for a record twelfth trip.

Donald Trump first used twitter to promote himself and his projects; candidate Trump used twitter to rally his supporters; President Trump still tweets, but it may be possible that twitter will become his Achilles' heel.