If you take the main seven stars of Ursa Major (or the Great Bear, or the Plough, or the Big Dipper), square the corners off, and make them all evenly spaced, you can make the :.:: symbol. If you follow these stars in sequence, starting with Apha Ursae Majoris for obvious reasons, the last star is called Alkaid, which is clearly a link to Al Qaida. Alkaid's Arabic name means "the leader". Furthermore, as anyone with a passing interest in astronomy knows, if you're in the northern hemisphere you can use Ursa Major to find north.
Al Qaida? Leader? A clear hint of direction? :.:: is obviously some kind of a map to Osama bin Laden's hiding place. And since Haven was released in 2000, DT clearly knew about bin Laden's hiding place before he needed to go into hiding. They were in on the planning. The only possible conclusion is that some or all of DT are high-ranking members of Al Qaida. It also means that we all support terrorism. Better put your helmets on, Dubya's going to be paying a visit pretty soon...