Uncanny X-Men # 1 Spoilers - Who Betrayed Cyclops?

The solicits for Uncanny X-Men # 1 hinted out that there's a traitor in Cyclops' new team and by the end of the first issue, we already find out who that person is.

Find out who the traitor is after the cut. Oh and SPOILER ALERT

It was pretty obvious especially if you took the time to actually read All New X-Men # 3. It's none other than...

*gasp* *shock* *disbelief* 

Here's the dialogue that might have given us a clue that it was Magneto all along...