The number of shootings in the city has declined significantly in the last 10 years. Shooting incidents peaked in 2006 when 1,857 shootings were recorded. That number has dropped 44 percent to 1,047 shootings in 2014. Similarly, major crimes in the city has decreased gradually in the last ten years since its peak in 2006 when 85,498 major crimes were reported. In the past three years, the number of reported major crimes fell 11 percent to a total of 68,815. Violent crimes, which include homicide, rape, aggravated assault, and robbery, decreased 14 percent in the past three years with a reported 15,771 occurrences in 2014. Based on the rate of violent crimes per 1,000 residents in American cities with 25,000 people or more, Philadelphia was ranked as the 54th most dangerous city in 2015.
Has violent crime rate fallen or risen in the last 10 years?
fell

Of the 80 torch-bearers in London, Sir Steve Redgrave, who started the relay, mentioned to the media that he had received e-mailed pleas to boycott the event and could "see why they would like to make an issue" of it. Francesca Martinez and Richard Vaughan refused to carry the torch, while Konnie Huq decided to carry it and also speak out against China. The pro-Tibetan Member of Parliament Norman Baker asked all bearers to reconsider. Amid pressure from both directions, Prime Minister Gordon Brown welcomed the torch outside 10 Downing Street without holding or touching it. The London relay saw the torch surrounded by what the BBC described as "a mobile protective ring." Protests began as soon as Redgrave started the event, leading to at least thirty-five arrests. In Ladbroke Grove a demonstrator attempted to snatch the torch from Konnie Huq in a momentary struggle, and in a separate incident, a fire extinguisher was set off near the torch. The Chinese ambassador carried the torch through Chinatown after an unpublicized change to the route amid security concerns. The torch made an unscheduled move onto a bus along Fleet Street amid security concerns and efforts to evade the protesters. In an effort to counter the pro-Tibet protesters and show their support for the 2008 Beijing Olympics, more than 2,000 Chinese also gathered on the torch route and demonstrated with signs, banners and Chinese flags. A large number of supporters were concentrated in Trafalgar Square, displaying the Olympic slogan "One World, One Dream".
Where was an attempt made to take the torch?
Ladbroke Grove

Von Neumann continued unperturbed in his work and became, along with Edward Teller, one of those who sustained the hydrogen bomb project. He then collaborated with Klaus Fuchs on further development of the bomb, and in 1946 the two filed a secret patent on "Improvement in Methods and Means for Utilizing Nuclear Energy", which outlined a scheme for using a fission bomb to compress fusion fuel to initiate nuclear fusion. The Fuchsvon Neumann patent used radiation implosion, but not in the same way as is used in what became the final hydrogen bomb design, the TellerUlam design. Their work was, however, incorporated into the "George" shot of Operation Greenhouse, which was instructive in testing out concepts that went into the final design. The Fuchsvon Neumann work was passed on, by Fuchs, to the Soviet Union as part of his nuclear espionage, but it was not used in the Soviets' own, independent development of the TellerUlam design. The historian Jeremy Bernstein has pointed out that ironically, "John von Neumann and Klaus Fuchs, produced a brilliant invention in 1946 that could have changed the whole course of the development of the hydrogen bomb, but was not fully understood until after the bomb had been successfully made."
What improvement did von Neumann see in the nuclear weaponry?
using a fission bomb to compress fusion fuel to initiate nuclear fusion