It's only 65 years back.
They know what their mums and dads look like.
You saw that art installation statue in the pilot next to Alec's building?
The bugger was chipped/fractured. Something cleaved a chunk off.
Maybe its almost safe to do anything they want, because Vancouver is going to be frakked by some really bad shit in the next 30 years before the bail out saves the world?
The damage to the statue might suggest a bomb.
Some people fear that the only thing really stopping the use of fission bombs is radioactive fallout.
In theory Fusion bombs don't produce radiation.
They can blow up cities and then move in the next day to camp out on the rubble.