The brothers suspected of the Boston Marathon bombings originally planned to carry out the attack on July 4 this year, a law enforcement official has said.
But the official claimed the Tsarnaev brothers decided to strike earlier because they completed building their bombs more quickly than expected.
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The former presidential candidate, who has herself been the target of false news reports, said such stories had 'real-world consequences'.
London councils recorded the largest surpluses, with the capital's 33 local authorities accounting for 44% of the total figure.
Outbreaks of rain will move slowly from north to west but otherwise a mainly dry day ahead.