[SHaKaL]

I now it's a agency but it's country wide and the basic postal service that almost everyones count on...

Yeah the airlines might but CP strike is-was hurting small businesses as much.
They already have better pay, pension plan, and overall conditions (sick leave etc...) than the private sector.
The thing the unions didn't want was lower base salary for new employees... Because it was hurting their coffer (almost 400$ per employee a year.)