Although the 10th anniversary of the attacks on the Twin Towers is fast approaching, the conspiracy theories behind them are still as strong as the memories of that day. The BBC has put together five of the biggest conspiracy theories behind the attacks and has debunked each and every one of them.
From the article:
Numerous official reports have been published since the Twin Towers fell, but just when a piece of evidence casts doubt on one theory, the focus then shifts to the next "unanswered question".
Here are five of the most prominent 9/11 conspiracy theories circulating in online communities.