A very wise man once taught what a Union is.
A union is a business, the purpose of that business is to keep the union EMPLOYEEs, NOT the union Members Employed.
Here is a real interesting article about how the Union Employee pension fund compares to the Union Members pension fund.
Both in investments made, and funding level.
http://www.forbes.com/forbes/2009/0803/private-equity-why-several-unions-invested-in-one-fund.html