THE 17-day long trauma of the 41 mostly migrant workers trapped inside a collapsed road tunnel in Silkyara, Uttarkashi district in Uttarakhand state, is finally over. It has taken days of efforts by multiple agencies, public and private companies, foreign experts, engineers from the army, other workers, a battery of large and complex machines flown in by the air force from different parts of the country, and many ad hoc decisions and different methods of clearing the over 60 metres of debris blocking the tunnel, to finally effect the rescue.