Not all boys who aspire to be Eagle Scouts get the job done. Fewer than 4 percent of all Scouts make the cut. Fewer still attain Scouting's highest achievement if they have mental or physical disabilities because Eagle Scout is about more than knots and campouts. Eagle Scout wannabes must explain the differences between national and international law, explain the six functions of government spelled out in the preamble to the Constitution, build an ecosystem in a bottle. The list of requirements ranging from citizenship to physical fitness goes on for 20 pages, and there isn't an easy one in the bunch. Still, Troop 427 Scoutmaster Barry Larson believed Chris Naccarato, 17, had a chance, despite having Down syndrome, despite an age cutoff of 18 that meant Naccarato would really have to put his nose to the grindstone in order to get the job done.