Meet the "Steel Warriors" melting down knives to empower British teens

London — A charity has been hard at work turning thousands of knives taken off the streets of London into a new type of weapon to counter a youth violence crisis facing many British cities. In the East London neighborhood of Langdon Park, more than a dozen teenagers met up recently for fitness training on equipment made from the confiscated weapons."The thought of doing something that I don't think 1% of the population can do," Bruce Sanh, 16, told CBS News when asked what inspires him to push his body with calisthenics on the recycled weaponry.The idea is that the community is building something much bigger than muscles. The bars kids climb on in Langdon Park now are made of knives that police have taken off London's streets. "It's a whole metaphor for creating positive change out of something that's very negative," coach Demi Alvanis told CBS News.Volodymyr Hirnyak, 15, said the park has become more than a free place to exercise. "Now, I have friends. I have everything now. I'm stronger, I feel more confident," he said. "My wellbeing's better." More than 10 tons of weapons have been melted down and transformed into outdoor gyms so far under the anti-knife crime initiative "Steel ...