Here are a few of the many reasons to be optimistic about the economy: The Bureau of Labor Statistics (BLS) has issued its annual revision of employment statistics, adding 810,000 more jobs to the previous total. The latest numbers show 2.54 million new jobs in the last 12 months, and 5.5 million in the last 24. Unemployment is at 4.7 percent. The Dow Jones has now topped 12,000 and is up 51 percent since the tax cuts in 2003, while the S&P 500 is up 63 percent and the NASDAQ is up 80 percent. The U.S. economy has grown at...