Quote Originally Posted by Kaelik View Post
Yes it does? If the paranoid rogue is checking everything for traps then the Wizard has time to concentrate for a bit.
Rather, it shouldn't work like that unless you're a complete moron.

You can check the entire area of the cone. You don't need to check each individual object in the rea. Everything you can see within sixty feet. At that point, the DM has a responsibility to just tell you if you see any magical auras (and where they are on the third round of concentration). If a player keeps asking for each individual object, they're either an idiot or being deliberately obtuse.