In 1999 the journalist Duncan Campbell published claims that a  tower on the premises of the uranium enrichment plant had been used to intercept telephone calls transmitted by microwave between the British Telecom towers at Gwaenysgor, Clwyd, and Pale Heights, near Chester.
In 1999, journalist Duncan Campbell claimed that a tower on the premises of the uranium enrichment facility was used to intercept phone conversations sent through microwave links between British Telecom towers at Gwaenysgor, Clwyd, and Pale Heights, near Chester.