'Porn filters' stopping sex-education access
19 December 2013 Last updated at 00:41 GMT
Filters put in place to stop young children and teenagers from accessing pornography online are preventing access to sex-education and rape crisis support, a BBC investigation has found.
A number of privately owned internet companies now offer "porn filters" to parents who want to ensure their children cannot access sexual imagery,
But critics say the technology is flawed and often censors the wrong sites.
Jim Reed reports.