Zarqawi chose Afghanistan. With a pair of friends, he made his way to Kandahar, eventually arriving at the headquarters of the one former Afghan Arab who might have been expected to welcome him: Osama bin Laden. But instead of getting a warm greeting from his old mujahideen comrade, Zarqawi was rudely snubbed. The al-Qaeda founder refused even to see Zarqawi, instead sending one of his aides to check out the Jordanians.
What an asshole. Blowing up the World Trade Center is one thing, but being a terrible host is something else entirely. Good manners cost nothing.
