A program with a method that allows you to bake in a catch

program-with-catch.js

program2 = function(/*...list of functions*/){
  var context = this,
      args = arguments,
      chain = pipe2.call(this,arguments);
  chain.catch = function(catchfn){
    return function(unit){
      return program2.apply(context,args)(unit).catch(catchfn);
    };
  };
  return chain;
}