US troop withdrawal: President Trump accused of abandoning allies in northern Syria

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President Trump has defended his decision to pull US troops out of northern Syria but he repeated his warning to Turkey not to take advantage of the withdrawal. Why are do so few women scientists win the Nobel Prize? It's 30 years since the tumultuous events of 1989, when the Berlin Wall fell, the Iron Curtain lifted and the Soviet empire began to crumble. This week our Moscow correspondent Steve Rosenberg has a special series of reports on how Russia views 1989.