An update from the CNN newsdesk in London on the stories we're following on Friday:

German intelligence - August Hanning, the former head of the German Intelligence Service, tells Nic Robertson just how close the western allies were to Bin Laden at Tora Bora, all those years ago, and that they missed a "real opportunity" to capture him. 

Russia spy ring - A colonel in Russia's Foreign Intelligence Service, identified as "Colonel Shcherbakov," gave the United States information on a Russian spy ring in the United States that was broken up this past June, according to a report in the respected Russian newspaper Kommersant. Read the full story

Teenage sleep - Phil Black headed out to Monkseaton High School in the North of England to look at how the school has decided to embrace teenage sleeping patterns and adjust the school hours to suit the pupils, rather than trying to drag them out of bed early in the morning.

Mushroom magic - Visitors to Berlin's Museum for Contemporary Art can book a night in an installation created by artist Carsten Hoeller ... an installation that includes a hotel room floating on a platform shaped like a mushroom, inspired by a mythical elixir derived from so-called "magic mushrooms." Diana Magnay reports.

Gaza activists - Strofades IV, a Gaza-bound ship, has docked in the Greek port city of Peiraias, the country's merchant marine ministry said Friday. The ship was part of a Gaza-bound convoy sponsored by the independent activist group, Road to Hope. The group said that the incident took place after the ship owner "went berserk" in an argument with an Egyptian broker. The captain sailed back to Greece carrying the activists and seven Libyans.

$80,000,000 vase? - A brother and sister who unearthed a Chinese vase in a clear-out of a suburban house in London were stunned when it sold for a world record-breaking £43 million. The 18th-century piece of Qianlong-era porcelain was expected to fetch between £800,000 and £1.2 million when it went under the hammer on Thursday. But the total price, including commission and VAT on the commission, was £53,105,000.