Can the Red ever see green? The recent volte face by the West Bengal government on introducing Euro emission norms for Calcutta's vehicles has exposed the colour blindness of the state's Left Front rulers. Taking the cue from Delhi's decision to introduce the Euro-I and Euro-II norms, West Bengal environment minister Manab Mukherjee had also announced a 'package of environment policies' on the eve of the last environment day. However, faced with protests from within and ouside the government, Mukherjee had to place the matter before a committee-an officialese for putting an initiative on hold.