John Kerry has been sworn in as US Secretary of State, replacing Hillary Clinton.
Vice-President Joe Biden, swearing in his longtime friend, said: "Few men or women I have ever worked with have more integrity or honour than John Kerry."
Kerry quipped: "I've grown used to being sworn at, it's really nice to be sworn in."
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Scotland Yard said the male youths will appear in custody at Westminster Magistrates' Court on Saturday.
Windy this weekend with gales across northwestern parts of the UK. Rain spreading southeast.
Greater Manchester Police said "inquiries are ongoing to fully understand the circumstances of the incident."