Station staff in sefveral locations have been shocked to find out that the number of night cleaners on their station has been cut, without any notice or discussion.
And the cleaners involved have been told - often verbally, at just one day's notice - that there is no more work for them.
Under instruction from the Mayor and TfL, cleaning contractor ABM is reducing its use of agencies. But the point, surely, is to replace reliance on agencies with directly employing cleaners. Instead, seeing the opportunity to cut costs and boost profits, ABM is reducing reliance on agencies by ... sacking the agency cleaners.
This leaves cleaners suddenly out of work, and stations desperately under-staffed, including, for example, Brixton and Highbury and Islington stations reduced to just one cleaner on nights.
We can stop this appalling attack if we challenge it on three fronts - cleaners fighting the job cuts, station staff fighting the loss of cleaners, and all of us raising it as a political issue, demanding that our Labour Mayor intervene to stop this.
RMT activists are already going into action; the more of us join this campaigning, the better our chances of success.