Have US diplomats been targeted by Russian sonic weaponry? Unexplained symptoms such as dizziness reported by personnel working around the globe have been dubbed "Havana Syndrome". Now a joint report between The Insider, Der Spiegel and CBS's 60 Minutes, alleges it’s the result of their brains being targeted by "directed energy" weapons operated by a secretive Russian military unit. The Media Show meets one of the journalists involved in the story. Moscow has denied the accusations. US officials have previously said it was unlikely a foreign power was to blame. British counter terrorism officers are investigating the stabbing last Friday of an Iranian TV host outside his home in London. Iran International presenter Pouria Zeraati was hospitalised, before being discharged and moving to a safe place under the supervision of the Metropolitan Police. The channel says it provides independent coverage of events in Iran and that it has faced a "significant escalation in state-backed threats". Iran's charge d'affaires in the UK said "we deny any link" to the latest incident. And as Gmail celebrates its 20th anniversary, how useful is email today as a form of communication? Or has it been overtaken by messaging apps like WhatsApp?