Very rarely do you find something in a bargain rack at Wal Mart that is informative, but in Houston, I struck gold.
This DVD- International Terrorism: The Global War on Terror, is a well above average history of Terrorism in the US and abroad. Al Qaeda is there, The Taliban, Al Fatah, Hamas, The Chechens, Weathermen, Aum Shinryko, separatists, cultists, etc. are chronicled. These groups were all dangerous, and some that remain, still are. 9/11 is at the forefront and a basis of comparison for many of the still active groups, and the rest are all given objective treatment.
There are drawbacks, as the material on Qadaffi still says he is in power. So this is somewhat dated material. The video was made in 2008 or so. Despite that, this BBC aired series is of interest. They show Israel having some roots in terrorism, but make the distinction that most Jews were not terrorists, like the Irgun/Stern Gangs, as they showed some Muslims opposed the Taliban and Islamic Brotherhood in Egypt, to their detriment.
I recommend this for any historians and those who are current affairs die-hards.