As a Muslim family they had to also deal with the fear or being attacked for their faith, and ultimately Abdul (the father/husband) was suspected of terrorism in a lawless New Orleans, when there was no real evidence against him and arrested by the makeshift police forces in place. As someone deeply and permanently affected by September 11th, it was hard at first after that attack to distinguish between subsets of faith, to try to figure out who had struck out against my family. But ultimately by educating myself I've come to the conclusion that Islam is a peaceful religion, which believe me has been a hard sell to some of my friends and family.
I feel conflicted sometimes because I don't believe people should be persecuted for their religion, the United States is grounded in religious freedom, but at the same time we need a way to protect ourselves from people who believe their religion entitles them to hurt anyone who isn't of their faith. I'm not sure what the answer is, but arresting Muslims based on no evidence certainly isn't it. The Zeitoun's story made me angry because with all the resources this country has it its disposal, lawlessness should never be a concern, even in a decimated city. How does a country like the United States lose total control like that?
I don't particularly have any answers to the issue of how to maintain religious freedom in the face of Terrorism, I am after all a mere journalism grad student, but you should read Zeitoun because it is important to at least think about these issues. You need to be exposed to other people and their stories and perspectives to understand the implications of public policy.