Teamster-led workers in contract talks with Canadian National Railway could be on the picket line as early as 12:01 a.m. ET Tuesday after serving strike notice on the company. The Teamsters Canadian Rail Conference – Conductors, Trainpersons and Yardpersons (TCRC-CTY), which represents about 3,200 CN conductors and railyard co-ordinators in Canada, has served 72 hours’