Most all Islamofascist terrorists are not suicidal; and nearly all Islamofascists want to live to see their objectives achieved. So a terrorist (including witting enablers) smuggling an IED through the checkpoint -- or putting together one from supplies available airside -- and/or (also) getting one onto the plane via the cargo holds is still a real possibility. Terrorists who believe their political objective are worth more than their own life AND terrorists who believe their political objective is less than their own life are both problems. Although the former may go for the cockpit still or carry-on/travel-with "opportunity", the latter may still exploit the cargo window of "opportunity".