How can a signal failure on the jubilee line cause so much chaos?? If its
affecting the ATO why can't they just drive the trains manually through the
affected section? Or has more than just a signal gone wrong and they don't
want to tell us?

Plus it would have been nice if LU had listened to what people were saying
about using Charing X as a backup terminus instead of just closing the
jubilee platforms and walling up the escalators for no good reason.
Still , if the powers that be there had brains they wouldn't have been working
for LU in the first place I guess...