Sir — This refers to the editorial, “learning from tragedy” (November 22). Perhaps we are accustomed to getting wise only after the occurrence of an event — in this case, the train accident near Kanpur. What follows next after the accident is a number of inquiries which is often consigned to oblivion. The need of hour is to revamp the railways’ outdated system by replacing it with state-of-the-art technology. And this is not an uphill task, given that the railways is a highly lucrative department of the Union Government.