To answer a few questions about DT's and bombs. I've been very close to both, actually used to sit on a Mk84 (2k bomb) on occassion since it was always next to my jet. The ordance guys (BB stackers as we call them) would be the best ones to get the answers on bombs, but I have seen them hanging from the wings enough times, I can give a general description.
The bombs are loaded and secured to the pylon which is held by two locking hooks and then 4 adjustment screws are tightended by 2 people at the same time so as to keep the bomb from becoming offcenter. Once the that has been accomplished, the wire that Leayme mentioned is attached to the pylon/bomb rack (The wire is routed between 2 lanyards that are attached to the pylon/bomb rack). He mentioned the safety pin as well, however, that safety pin is removed before the plane leaves the ground. On the fuse at the front, the wire is threaded through a hole in the spinner that is just slightly larger then the diameter of the wire and is then crimped in such a way that it can't be accidently pulled out with little force while at the same time allows the wire to be seperated when it is dropped, allowing the spinner to spin which enables the bomb to "ARM". These are typical of bombs that are used for impact detination and not penetration. You have to understand that GP(and all other type) bombs are not armed until after they have fallen away from the aircraft. Bombs that explode on impact are armed when the timer in the fuse winds down for the specified setting and that happens once the wire has been pulled from the spinner. These are the type used in AH.
Not all bombs have spinners on the rear fin pack. Not all bombs dentonate on impact. Pentetration bombs have no fuse on the front, instead the fuse is in the fin pack, hence the spinner on the rear. With bombers, there are many different methods used to hook the wires up that are mentioned, but the end result is still the same. A 2000 pound bomb doesn't have 2000 pounds of explosives in it. Todays 2k bomb is packed with approximately 940lbs of high explosive. If the explosion doesn't kill you, the flying debris will.
Now the Drop Tanks. Yes, a drop tank can explode if it is hit by machine gun or cannon rounds. There are plenty of pictures (gun camera footage) of external fuel tanks bursting into flames after taking hits. Tracers tend to be a bad mix for high octane fuel. It takes an ignition source to ignite the fuel in most cases, however, static electricity can also cause fuel to ignite, but rare for that to happen in flight. Napalm isn't simply just fuel, it's a mix of chemicals and gasoline that cause the gasoline to become a brownish sticky syrup. Aluminum soap powder of naphthene and palmitate was added to gasoline to make napalm as we know it. It's made differently today and is known as Napalm-B or NP2 which uses no naplam at all. If you look at the words naphthene and palmitate, you can see how they came up with Napalm.
Napalm was used during WWII extensively in flame throwers . It was not until the Korean war you saw "Napalm" bombs used. Therefore, it is inconciveable to have such bombs in AH. I do believe though we should have incendiary bombs to burn down towns though. They are not the same as napalm bombs!!!!
Hope this helps you a little.
Wsky