Just gonna throw this out there. I think Cyclop's school is under ground in Genosha, because a little before M-Day Xavier asked Magento if he choose the location of Genosha because of some special reason, because Xavier said the longer he stayed there the stronger his powers got. And considering most of the Uncanny X-Men have broken powers. It also makes a lot of sense for them to want to build up their forces for a "revolution" on an unused country that I'm pretty sure Magento still owns.

Isn't their base in an old Weapon X facility in Canada!?

@papad1992: Is it? I don't remember at ever being said? I thought it was just a mystery?

@teerack: Nope. It was said in the first issue. Weapon X facility in Canada.

@illyanarasputin: Oh, okay. Never mind then....

@teerack:

Nope...This.