Unionized workers employed by the Winnipeg Airports Authority (WAA) sent a clear message to their employer last night, voting strongly in favour of taking strike action later this week should mediation talks break down. Several meetings were held Monday evening to allow union members to vote to take strike action as early as 12:01 a.m., Saturday, July 22, if an agreement can’t be reached. That deadline can be extended, as needed, if talks remain productive.