Hold onto your hats. Stock market volatility could get worse, a widely followed technician says. U.S. stocks hit a three-month low Wednesday morning amid concerns of slowing growth in China and the uproar over North Korea's claim to have tested a hydrogen bomb. By late morning, the S&P 500 index was around 2,000. On Tuesday, Bank of America Merrill Lynch's Stephen Suttmeier said the S&P is in danger of dipping below 1,965, a key technical level that could unleash a torrent of selling. "In 2011.......
