We've done some digging on One Nation's weird tanty over the ABC and Andrew Probyn's "leaking" of a pending trip to Afghanistan by a parliamentary delegation consisting of two government, two opposition and two One Nation MPs.

According to Defence, such delegations are "open to all Federal parliamentarians who can apply to take part ... In the event an activity is oversubscribed, a ballot is conducted to determine the participants. A ballot was not required for this particular activity."