Smuggled over the border: the school trip, the Stasi and the East German defector

In December 1984, a group of teenagers on a school trip from West Germany crossed the border into East Germany. When they returned, an East German defector was hiding under a seat on their bus. Sophie Hardach speaks to those involved 35 years on and revisits their incredible story. Plus: Jo Holdaway on the GM anti-virus drug that saved her daughter’s life. Help support our independent journalism at <a href="https://www.theguardian.com/infocus">theguardian.com/infocus</a>