Appropriately named after Dem icon “Tip” O’Neill, the downtown tunnel and elevated central artery urban planners thought would bring Boston into the 21st century has laid a golden egg.  Originally budgeted at $2.6 billion, the Apes say our nation’s most expensive highway project- ever- came in five years later at a cool $14.6 billion.  Brahmin John Kerry and Ted Kennedy aren’t talking.  The pols up the state house on Beacon Hill non plus.  But hey, that’ s only a couple months worth of war in Iraq and Afsmackistan.