The support team for US veteran long-distance swimmer Diana Nyad said they are posting Twitter updates "through tears and giddy smiles" as she nears the end of her epic Cuba to Florida journey:
Confession: We're posting through tears & giddy smiles & exhausted eyes after tens of thousands of page refreshes & no sleep. #XtremeDream
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The world's first ever 'hole in the wall' was installed in Enfield, north London, on June 27 1967.
America says it has "identified preparations" for an attack similar to that which killed at least 86, including 30 children, in April.