RT News - August 18, 2015 (17:00 MSK)

A former interpreter for the British army in Afghanistan - who was refused asylum by the UK, despite being hunted by the Taliban - has reportedly been killed in Iran. As Islamic State seeks to expand its reach, a Russian family is desperate to find their son amid growing fears he's been recruited by the terrorists. His parents share their heart-rending story with RT. Bangkok is shaken by another blast, following Monday's deadly explosion. We look at how terrorists are increasingly targeting tourists around the world.