It's bad enough that the Bush gang keeps the president in a bubble, making sure he doesn't hear any dissent or questions Bush is unwilling (unable?) to answer.

It’s worse to see Rudy Giuliani follow the same path.

More than the other major presidential candidates, Mr. Giuliani has limited himself to events with narrowly defined, friendly audiences, avoiding the kind of uncomfortable interrogations his rivals have occasionally faced. (emphasis added)

Leaders are supposed to learn what not to do by following Bush’s example. For a candidate to limit himself to "friendly audiences" is an act of political cowardice.