Police have arrived ahead of a curfew in Ferguson, in Missouri, where violence erupted in the aftermath of a shooting of an unarmed teenager.
Guardian correspondent Jon Swaine reported that people were asking "Why are you here already?"
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Queen Elizabeth II is to celebrate her 92nd birthday with a star-studded line-up at the Royal Albert Hall in London.
Both figures were not taken seriously before being appointed to their huge roles, but the similarities don't stop there.
The US president, who has not visited the UK since being elected, is reported to be planning a summer trip to Britain.