Does the agriculture department not inspect the planes at Agana? All military birds are checked prior to departing Anderson.
On the weather there - in 2002 (or '01, but post 9/11 for sure) there was a super typhoon that parked over the island for 3 days with winds around 170 knots. Many people were without power and water for 3 months. What was left standing was cleaned up by a nice size earthquake a few months later. Several of the hotels closed due to structure damage. Those storms and 9/11 but a serious hurt in tourism there. Then there was a matter of funds from the US getting lost in pockets, instead of helping the re-build. In '04, life began to return to the island. The Thai buffet in Tumon Bay re-opened and the Jamacian Jerk Chicken place in the next town up was opening a new place in Tumon Bay.
Scuba is fantastic there. 80 pound skip jacks that will take your head off if you are not paying attention, 6 foot long eel that you could play with (I heard some diver killed it), the blue hole that is certain to test your advanced skills. There is also a wreck dive with a WWI and WWII ship that are touching. There are some sections around the island that will kill you if caught in the currents.
Having been there many times over, I can say I like the island. Most people however, I think would get island fever quickly.