Died: March 16, 2021. IT was the moment, Charles Moore recollects in the first volume of his biography of Margaret Thatcher, when the SAS, previously relatively little known, became a household word for heroism. On May 5, 1980, teams from 22 SAS stormed the Iranian embassy in Princes Gate, in South Kensington, London, dramatically ending a siege that had begun on April 30 when six heavily-armed terrorists had taken 26 people hostage. The gunmen had demanded the release of 91 Arabs imprisoned in Khuzestan, a region in southern Iran for whose independence they claimed to be fighting. Th...