Recently revived global trade talks need to be concluded quickly if they are to succeed, World Trade Organization chief Pascal Lamy cautioned Monday, saying a window of opportunity for the beleaguered talks would close at the end of June, REPORTED AP. «(Negotiations are) taking place at too slow a pace. Time is not on our side and many WTO members are becoming impatient,» Lamy told delegates at a seminar in the Indian capital aimed at finding solutions to the impasse between developed and developing countries.