Pakistan's jailed former prime minister Imran Khan hasn't seen any visitors in more than five weeks, according to his party. His family say this is partly to stop his words reaching the outside world. They blame the country's military chief, Field Marshall Asim Munir, a charge the government rejects. It says the meetings stopped because Khan broke jail rules prohibiting discussion of politics. While Khan may be silenced, he's far from the only one under pressure. Journalists, analysts and human