Security ... think about it!
After constructions that lasted more than a decade and billions of dollars invested in the world's largest scientific experiment, physicists who are now operating the Large Hadron Collider have just realized that they don't really know how the entire system works, in all of its details. As a result, they say, they may need more time to familiarize themselves with the machine, even if the June deadline, when the experiment is supposed to be brought back online, nears. Basically, many of those in the project tell that they've created a very complex organism, the result of more than 3,000 engineers working together.