Special: Air Security

On Christmas Day, Umar Farouk Abdulmutallab brought PETN, or pentaerythritol tetranitrate, the same plastic explosive used eight years ago by would-be shoe bomber Richard Reid, onboard Northwest Flight 253 from AMS-DTW (Amsterdam to Detroit).

This sparks a debate involving the questions:

• To what extremes should countries and airports alike go to preserve air security?
• If upgauging security, should airports use new technologies such as full body scanners that can see IEDs (Improvised Explosive Devices) hidden under clothes, but also blurred private parts?
• To what extent is security justified and moral? Intrusion of private body parts? "Virtual strip searches"?
• How affective is increasing security after all? Didn't we do that after 9/11? After which this event and the shoe-bombing incident happened?
• Isn't air security also an issue outside of the airport too? Most recently, Umar's father alerted U.S. officials of the potential danger of Umar? Shouldn't he have been on a no-fly list? Then wouldn't increased security at airports be unnecessary, if we could stop terrorists prior to the airport?
• Should racial profiling be considered? Will that accomplish security better? As in more screenings for people with certain skin color, coming from certain places, and from certain ethnic groups? Is that justified? 

I'll post my take pretty soon, after a bit more research and thought.