There is no international cricket in Pakistani grounds after the attack on SriLankan cricket team in 2009 at Lahore. Only one international series was played with Zimbabwe but that was not enough to convince the world that Pakistan is a safe place to play.
A few months ago, the final of PSL (Pakistan Super League) was played in Gaddafi Stadium Lahore where some international players came to play the final from Peshawar Zalmi and Quetta Gladiators. That match had changed everything and then ICC announced that ICC World XI will come to Pakistan for 3 T20 international matches against Pakistan. It was decided that all the three matches will be played at Gaddafi Stadium Lahore and today is the big day, World XI team is present at Gaddafi stadium and match will begin only in an hour.
You can watch live streaming of 2nd ODI b/w Pakistan and New Zealand here: