Strange that a pro-Mushuraff, Pakistan politician should say that, given that Pakistan started the Kargil intrusions within one year of the May 1998 nuclear tests by both nations. We were at war within a year of the nuclear tests of 1998 - so this statement by the pakistan guy is senseless.
Okay, so one might argue that the tests were in 1998 but the bombs were not part of the arsenal in an operational sense in 1999. But then, we almost went to war again in 2003, when the weapons were operational.
In conclusion, nulcear weapons do not in any way affect a decision by either India or Pakistan to go to war.
As far as the general calm in the subcontinent goes, its only do to the peroccupation of Pakistan in its own problems. The moment things settle down in Pakistan, the mullahs and generals will start their regional mischiefs.
To conclude, a simmiering Pakistan, busy with its own problems is best for the world.