PM to meet US president during private visit in July as Stop Trump Coalition announces protest planned for SeptemberAs Rowena Mason revealed recently, No 10 has issued guidance that in effect bans civil servants from any level of speaking at events where journalists are present.Today the Times has published a letter signed by almost 30 experts – including former senior officials, thinktank leaders, academics and union leader – saying this policy is a mistake because it is having “a chilling effect on public discussion” and that it should be withdrawn. They say:The government’s new guidance that prevents public officials from