We tracked them down, identified them and told the fisheries ministry to go after them.
He said: "We have been clear from the very beginning that our world-leading experts at Porton Down identified the substance used in Salisbury as a novichok.
Updated at 4.52pm BST 4.24pm BST Audio of President Obama's remarks on Egypt just now: 4.18pm BST A man writes down identified names of bodies of supporters killed during clashes at the El-Iman mosque in Nasr City, Cairo.
For more than a hundred years after the British physician J. Langdon Down identified it in 1866, Down syndrome was known as "Mongoloid idiocy" -- a term used not as an epithet but as a medical diagnosis.
One of the Royal Air Force's most significant successes came with Operation Crossbow, when it tracked down, identified and destroyed many of the V-weapons which could have prolonged the war.
They left behind such a traceable trail of five-star-hotel and restaurant bills, charges on false credit cards, and unencrypted cell phone calls that the Italian government tracked them down, identified them, and charged 23 of them, Lady included, with kidnapping.
