Why not talk to al-Qaeda too?

In the Wall Street Journal, Bret Stephens asks, if the US is going to have a conversation with Syria, Iran and North Korea, why not talk to al-Qaeda too? His answer makes a case for not having a conversation with Syria, Iran and North Korea: Imagine an anonymous, virtual association of murderers and rapists who promise, via an Internet manifesto, to desist from wrongdoing altogether in exchange