If you haven't noticed yet, Canada's labour movement is undergoing a bit of a resurgence. Workers are unionizing more, and those that are already unionized are using their newfound leverage to win concessions from employers. Amid this climate comes Bill C58, which will prohibit some employers from using replacement workers (commonly known in unions as "scabs") during strikes or lockouts.How long has this bill been in the works, and exactly what does it cover? What happens if critical workers leave the job? How will non-unionized Canadians feel it, if at all? And what can it tell us about the direction of both the labour movement and the federal government right now?GUEST: David Reevely, Ottawa correspondent, The Logic