A key adviser has said that US Republican presidential candidate Mitt Romney would back Israeli military strike against Iran nuclear programme, according to the Associated Press.
The visit is the latest part of a three-nation trip that includes Britain and Poland.
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The number of children dying from cancer in the UK each year is falling, according to new figures from a major charity.
A mother who poked fun at a clothing company's portrayal of a woman getting out Christmas decorations has won thousands of supporters.
David Cameron will try to convince MPs that Britain should be striking so-called Islamic State targets in Syria on Thursday.