Why are more people working longer?  Workers age 50 or older now comprise 33.4% of the U.S. labor force, up from 25% in 2002. And more than 60% of workers age 65 or older now hold full-time positions, up from 44% in 1995. Is it by choice or necessity.  Learn the surprising  answer as Steve and Sinclair review the new Wall Street Journal report.