Allowing an evil to happen in order for good to come out of it is evil itself.
To risk innocent American's lives and get some killed in the process so that Americans at large can understand what this administration stands for is wrong headed. And you better believe this is what is happening right now because we knew that Obami was very dangerous because of his insane policies when it comes to "fighting" terrorism. Americans have already died and we are all at risk everyday because of this fool. It was not worth it to teach everyone a lesson.
Who is it who “allowed” an evil to happen?
Are you calling God evil? Because he certainly allowed very bad things to happen to Israel when the turned their backs from Him.
Sometimes you must allow pain in order to get the people’s attention. It this case short term pain will result in long term gain ... hopefully.