There is a threat of a rail strike in France this weekend as national rail operator SNCF and union representatives are far from reaching agreement in wage talks, union leaders said. Fabien Villedieu from the Sud-Rail trade union said on Tuesday that given the results of a meeting with SNCF management on Monday evening, he did not see how the conflict could be prevented. According to French media reports, in addition to Sud-Rail, the CGT union also stuck to its strike notice for conductors for the weekend. The winter holidays start this weekend in parts of France. Rail disruptions would upend h…