Christiane Amanpour, CNN’s chief international anchor and a fixture of the 24/7 news network for more than four decades, plans to leave the company next June. “After more than 43 years at CNN, Christiane has decided that the time is right to begin a new chapter,” Mark Thompson, CNN’s chief executive, said in a letter to newsroom employees that was obtained by NBC News. Thompson said Amanpour, 68, plans to “scale back” her eponymous CNN International show to once a week early in 2027. “The program will conclude in May,” Thompson added, “and she will leave CNN at the end...