Jeremy Harding

Last week, the Palestine Festival of Literature organised a discussion about travel and writing at the Dar Annadwa cultural centre in Bethlehem. One of Palfest's star guests, touring the West Bank and East Jersualem, was Michael Palin, whose early glories, before his reinvention as a traveller, were much on people's minds. He spoke well about growing up in Sheffield and cultivating a passion for Hemingway, but the audience was delighted when someone suggested that living under Israeli occupation was a bit like being in the Terry Gilliam movie Brazil. As the panellists stood up and tidied their books, a young Palestinian in the seat in front of me said she couldn't believe we were all with Palin in Bethlehem – Bethlehem! – and no one had thought to ask about Monty Python's Life of Brian. But with two other writers on the stage, there'd been a lot of ground to cover.

What’s the difference between Martha Stewart, ‘lifestyle guru’, ‘third most powerful woman in America’ etc, who was refused entry into the UK last year, and the 16 foreigners who have just been barred by the Home Office? Jacqui Smith’s initiative – name the naughties – was announced on Tuesday, with some fanfare and much triumphalism. It fingers people likely to stir up hatred or ‘glorify terrorist violence’, which obviously isn’t Stewart’s bag, and not all of them have criminal records, which obviously is, yet somewhere here there’s a bigger difference. It was about this time last year that Stewart was planning a visit to Britain but a few days before she was due to jet in, she was told she couldn't come. Her criminal past in the US was the problem. She wasn't convicted of insider trading, but she did fib to investigators during an inquiry into the sale of shares in the cancer-drug company ImClone hours before the public announcement that its wonder therapy, Erbitux, had failed to win FDA approval. That was in 2001; Stewart offloaded more than $200,000 worth of shares. In 2004 she was sentenced to five months in jail, which she served, coming out under supervised release in 2005. She famously told Barbara Walters that she wasn’t the only irreproachable human being in history to be sent down: ‘Look at Nelson Mandela.’