En Greve...
(On Strike...)
I don't know if you've heard, but the French love to strike. They will strike about anything, and everything. They take it seriously, as it is one of their rights as a citizen of the Republic of France.
So, public servants are going on rotating strikes in France. Today happens to be the SNCF (the national French rail network) that is on strike. They're striking that their pay raise isn't good enough. They are only running "essential" trains, which means that you really don't know which ones are running, and which ones aren't, because you don't know which ones are "essential".
You can even check out www.greves.org, which has info about strikes in France.