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The Christian Science Monitor reported that the spokesperson for the Kremlin’s Investigative Committee (a police body) said:

As it is a man-caused accident, it is obvious that there are people responsible for it, so soon there will be suspects in the case.

Later the International Business Times published this headline:

Moscow Subway Accident: 2 Arrested Metro Workers Failed To Properly Supervise Track Switch Repair, Authorities Say

It seems the two arrested supervised a job where a track switch was re-wired with the wrong wire.

Twenty-one have died, over a hundred were injured, and over 1000 people had to be evacuated from the subway after the accident.

What do you think? Will discipline solve the problem? Or does a real root cause analysis need to be done?