The tournament is due to start at Lord's on June 5, with a further 26 games to be played at venues, including Surrey's Oval and Trent Bridge in Nottingham. Sports Minister Gerry Sutcliffe said: "We have to look at security. We don't want terrorists to win. We have to strike the right balance."
On Wednesday, Mar 5 night, Pakistan looked certain to be stripped of their right to host the 2011 Cricket World Cup.
International Cricket Council president David Morgan said: "It's difficult to see international cricket being played there for the foreseeable future."
Former England bowler Dominic Cork, 37, who was in Lahore as a Test commentator, added: "I don't think international cricket should return to this country.
"I won't be coming back here, not while I'm living. There is no chance."
Former Pakistan captain Wasim Akram, 42, admitted: "Hosting the World Cup is now a distant dream. How do you expect foreign teams to come to Pakistan now?"