In 2010, "The Guardian" reported that newly declassified South African documents uncovered by academic Sasha Polakow-Suransky showed details of a meeting on 31 March 1975 between the two countries' defence ministers, at the time South African P. W. Botha and Israeli Shimon Peres, in which Peres purportedly offered South Africa "three sizes." The report suggested that the "three sizes" referred to nuclear warheads, but the deal never materialised. Backed by former minister Yossi Beilin, Peres said the allegations were untrue and based on a selective interpretation of the minutes. Former apartheid foreign minister Pik Botha, as well as various Israeli insiders and experts, also said the allegations were highly improbable. Avner Cohen, author of "Israel and the Bomb" and "The Worst-Kept Secret: Israel's Bargain with the Bomb", said, "Nothing in the documents suggests there was an actual offer by Israel to sell nuclear weapons to the regime in Pretoria."