The State of the Union Address is usually among the most important and least memorable of presidential speeches. The speech itself, in an august setting, is an opportunity for a president to break through in a new way. TV and radio carry it live, and it's hard for the average citizen to avoid seeing at least a piece of it. It's a real chance for a White House to tell the American people "This is where we stand, this is why we are here, this is what we believe in." But most State of the Unions don't measure up. They...