The mother of the two brothers suspected of the Boston Marathon bombing has said she is "sure that (her) kids were not involved" in the blasts.
In a tearful press conference, Zubeidat Tsarnaev said she would have noticed if her sons had been planning such an attack, saying: "Any change, we should feel, I should feel it."
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Jordan Burndred's devastated mum Nicola confirmed the news on Facebook saying the 17-year-old 'didn't make it through the night.'
At least four plots attempts to smuggle highly-radioactive materials to Islamic State militants were stopped in the last five years.
Women should be warned not to drink alcohol for the whole of pregnancy to avoid harming their baby, researchers said.