SCOTTSDALE, Ariz. -- The holiday season can hold many hazards for senior citizens, including crime and scams. But one that many don’t think about is falling in crowded malls or on slippery streets. Now there's a new way for seniors to stay safe, healthy and fit. It's called a cane fu class. It's kind of like kung fu but it teaches seniors to use their canes and walking sticks as martial arts weapons. Cane fu also helps folks improve their balance and overall fitness levels. The class is part of the Nifty After Fifty program, the first fitness program that...