The average California household's share of the debt for underfunded state and local government employee pensions comes to about $30,500. Stanford University studies released last week and in December for the first time aggregate public pension shortfalls statewide. Using moderate assumptions about future investment returns, the unfunded liability is about $379 billion. Hard-core pension reformers will maintain that the number is much more. Defenders of the status quo will insist it's significantly less. Before sorting out that dispute, let's understand what the numbers mean. Each year public employees work, they increase their future pensions. So, as they work, they and...