Take a Wii on a plane?

Need help with something.  My nephew is going away this week and wants to take his Wii.  My question is do they allow you to take it on the plane with you?  He wants to take it in his carry on bag. 

Has anyone taken theirs on a trip with them without any problems?

Flying out of DC in August (just after the whole British water bottle scare) I brought my 360 in my carry-on bag.  In this extremely heightened security, all I had to do was to take it out of the back and they swabbed it down with something and tested it for traces of substances used to make bombs.

I highly suggest bringing the power supply and maybe the video cables and a controller (not really that much) because they may ask you to turn it on.

I personally don't think he needs to take it with him.  He is taking his DS, but wants to the Wii too.sinsalaca

Then tell him he can't take it.  You're an adult and he's a kid.