Charity finds more than 500,000 child abuse victims

An analyst who removes child sexual abuse content from the internet says she is always trying to stay "one step ahead" of the "bad guys".

Mabel, who uses a pseudonym to protect her identity, works for the Internet Watch Foundation (IWF), a charity based in Histon, Cambridgeshire.

The IWF has a team of frontline staff who identify and remove online child sexual abuse imagery from across the world.

It has identified more than half a million victims this year, but says advances in technology are making the charity's work even more challenging.

Read the full article at BBC News.