Job openings fell to a seasonally adjusted 3.67 million. U.S. employers posted fewer jobs in July than in June. This is the latest evidence that hiring is weak. The figures follow Friday's disappointing employment report, which said the economy added only 96,000 jobs in August. The drop in available positions has made job hunting more competitive. Businesses are also worried about Europe's financial crisis, slowing growth in China and the pending expiration of tax breaks in the United States.