The church bells rang out in Boston following a moment of silence honouring those affected by the marathon bombings a year ago today.
As an American flag was raised the crowd, including Vice President Joe Biden, sang the National Anthem.
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Nabi Tajima, who was the last known person to have been born in the 19th century, died in Japan after being in hospital since January.
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Hunt accused companies of "turning a blind eye" to a generation of children "exposed to harmful emotional side effects" of social media.