in this fiery crash. witnesses said it took off east, from south, heading north when people on the ground heard it sputter p, the engine. the plane crashed into a wall and hit this building at an trill complex near the airport. breaking news right now about a major construction problem inside afghanistan, hamid karzai s government in particular. it s causing real concern back home. michael isikoff is breaking these details. what do you have, michael? reporter: well, there s a new crisis in u.s.-afghan relations over a trail of corruption that reaches directly into karzai s presidential palace. a special afghan corruption unit has developed what u.s. considers rock solid evidence that a top aide in karzai s national security council had accepted a bribe in exchange for helping to squash a major money laundering investigation. in recent weeks, top u.s.