"Once you're past your probationary period, you are likely protected by a union." Employees can join a union at any time federal public sector, including durin

"Once you're past your probationary period, you are likely protected by a union." Employees can join a union at any time federal public sector, including during a probationary period. "Therefore it is a side-effect of unionization that these junior-est of employees are the easiest pickings." Your premise is false, but even if it weren't, this wouldn't follow.