What has more than 50 million toes, is found in all parts of the world (except for North Korea) but heavily concentrated in California, Texas, Florida, Maryland, Virginia and the District of Columbia?
The answer, the almost 5 million people — active, retired or their survivors — who are in the federal Thrift Savings Plan. The TSP is the biggest — and many financial pros say the best — company-sponsored 401k plan ever.