They're not. Does your memory not extend back beyond September 11, 2001? To April 19, 1995, for instance?Maybe, but until a blue-eyed female terrorist commits an act of terrorism, they should spend time looking for the people who have been committing the acts. If all the attacks have been done by darker middle-eastern people, then they should look for those people.
Just for curiosity's sake, looking through the airplane hijackings and bombings listed here, here's a run-down of the confirmed or suspected perpetrators:
- 1 attack by a Puerto Rican
- 8 attacks by Arabs (mostly Palestinian or PLO-affiliated)
- 2 attacks by Indians (including one by Indian Canadians)
- 2 attacks by Koreans
- 2 attacks by Lybians
- 1 attack by Algerians
- 1 attack by Spaniards/Basques
- 1 attack by Angolans
- 1 attack by Colombians
You sure can't say that aircraft are only under threat by "darker middle-eastern people".
And like I said, that's just looking at incidents involving aircraft. Have a quick look through the list - if we look more broadly at all acts of terrorism, I think we find more that white terrorists just prefer to do their attacks on solid ground. And I'm sure you'd be able to find a blue-eyed woman or two in the ranks of the Real IRA, who are responsible or suspected for three of the bombings listed in that link.