In Britain, Jonathan Aitken and Jeffrey Archer, two members of former prime minister Margaret Thatcher's government, have both served time behind bars for perjury.

CNN: Can politicians be trusted?

"It does seem very odd that Jonathan Ross can be back broadcasting having made obscene, insulting remarks on the air, and Carol Thatcher, who said something which is allegedly highly offensive but which I rather doubt was meant to be so, in private, should be banned in this way, " he said.

BBC: Thatcher axed by BBC's One Show