Terrorists attacked Sri Lankan cricket team in Lahore on 3rd march . All the countries condemned this brutal act of terrorists. 2011 World Cup Cricket was expected to be played in India, Pakistan, Bangladesh ans Sri Lanka. But due to this terrorists attack on Lankan Cricket Team ICC(International Cricket Council) has declared not to play any of the World Cup matches in Pakistan on security reasons. ICC President David Morgan has condemned the Tuesday attack on Cricket players in Lahore and informed that Pakistan will not host any World Cup matches in its soil due to improper security problems for the players and cricket loving audience throughout the World.
As eight policemen has died and many injured during the fight with the masked gunmen in Lahore, ICC reports that it would a great difficult for them to accept that Pakistan is safe for conducting International Cricket and ICC board has planned to declare the result of this issue during their meeting with India, Pakistan, Bangladesh and Sri Lanka around mid-April 2009 in Dubai.
Sniperock's Blog 
it sounds like the recent attack against the Sri Lankan cricket team is turning out to be a huge blow to tons of Pakistani cricket fans, since now the sport in general has to be curtailed throughout the country