This document is a memo from Robert Alston at the FCO's Joint Nuclear Unit to Patrick Moberley. In the memo, Alston focuses on how best to respond to a recent letter of concern from Israeli Prime Minister Menachem Begin to Prime Minister Margaret Thatcher, on the subject of Pakistan's nuclear program.

This document is a memo from Christopher Mallaby at the FCO's Arms Control and Disarmament Department, to Robert Alston at the Joint Nuclear Unit. In it, Mallaby discusses a prior memo from Alston, as well as a meeting they both had with an official from the US State Department, Thomas Pickering, three days prior.

This document, a letter from Robert Alston of the FCO's Joint Nuclear Unit, to a Mr. W. K. K. White and Mr. Christopher Mallaby, discusses Pakistan's burgeoning nuclear program in the context of the broader South Asian political situation.

This document is a letter from Robert Alston of the FCO's Joint Nuclear Unit, to Mr. P.R. Fearn at the British Embassy in Islamabad. In the letter, Alston discusses the recent visit of a US State Department official, Thomas Pickering, to the Foreign Office in London.

This document is a letter from Christopher Burdess, a diplomat at the British Embassy in Islamabad, to Michael Wilmshurst at the Joint Nuclear Unit of the Foreign Office. In the letter, Burdess discusses a worrying interview given by President Muhammad Zia-ul-Haq to Washington Post Correspondent Bernard Nossiter.

The FCO’s Joint Nuclear Unit (JNU) assessed the Panorama documentary as correct in broad terms, but speculative and inaccurate in most details. Analysts contended that the most significant allegation was that of the Libyan/‘Islamic’ bomb, but that there was still no substantive evidence that Libya had provided finance or that Pakistan had agreed to proliferate. Anonymous allegations in the documentary were said to be ‘sensational’ but carried ‘little conviction’.

Comments by Robert Alston of the British Foreign Office on the State Department's "non-paper" on Pakistan. He questions the list of countries and expresses concern about the response of states with their own covert nuclear programs, like South Korea and Taiwan.