These concern are mask of ill minded propaganda against Pakistan where countries participating in this propaganda has well established negative plannings against Pakistan. Who gave rights Israel pointing concerns over Pakistan nukes when they itself surrounded by Arab countries and what is guaranty that you nukes never will go into hands of your oppositions or in bad hands? Have you? So this concern is Visa Versa. Try to keep out yourself in fictional theories.
If Israel want to develop relations with Pakistan they have to accept Pakistan atomic power (same like India) as Pakistan satisfied whole world over security of its program. So don't use typical tricks of discussion. We also will well come any effort from Israel toward development of relations if they will base over reality but not over fed propaganda.
Propaganda?
Pakistan decided to assist three countries - Iran, Libya, and North Korea - to acquire nuclear weapons. These are not just an ordinary countries, their regimes are constantly threatening other countries and jeopardise international and regional stability. In light of the events in Libya, just imagine what could have happened if Qaddafi successfully acquired nuclear weapons with Pakistan's assistance.
Unfortunately the list goes on - Pakistan offered its nuclear services to Saddam's regime in Iraq just a short time before he invaded Kuwait. Just imagine nuclear weapons in the hands of the Barbaric regime of Saddam who did not hesitate to massacre the Kurds and even members of his own family.
Only three weeks before the 9/11 terror attacks, two distinguished former nuclear scientists of Pakistan met with Bin-Laden and offered their services.
And the international community and Israel, as part of it, should not be worried?
Israel is a stable democratic country, nobody fear that it will fall into anarchy. On the other hand, Pakistan's defence establishment supports militant groups operating against civilians and security forces in India and Kashmir and Afghanistan. Terror organisations connected to Al-Qaeda and the Taliban operate openly in Pakistan and managed to take control on several areas of the country in FATA and NWFP. Pakistan's government and its security forces watch idly as these extreme forces gain more power, expanding their influence and arm themselves due to the need to use then for Pakistan's purposes in Kashmir and Afghanistan.
As a result, Pakistan's soundness is questioned by the entire international community, including how really safe its nuclear weapons. Why the U.S. refuse to offer Pakistan the same nuclear deal that it signed with India? People in Pakistan persuaded themselves that it is because of an American hatred or discrimination against Muslims, but the obvious reason is how can you legitimise Pakistan's nuclear programme after it was used to assist rogue regimes to develop WMD, its senior scientists tried to help Al-Qaeda, and the entire country is soaked with terror?
Although Pakistan helped our worst enemies who threaten publicly to destroy Israel (like Iran), Israel can overcome it and sincerely offer good relations between the two countries. All we can hope that Pakistan will become a model for a Muslim state which have positive contribution to international security and can play a moderate role within its civilisation.