Here is something for advanced students - but also recent students who have been practising listening to authentic English on Internet.
It is connected with the resignation of London's police chief, Sir Ian Blair. (No relation to Tony Blair, the former Prime Minister.)
You may remember that he was criticised after a Brazilian immigrant worker, Jean-Charles de Menezes, was mistaken for a terrorist and shot dead on the London Underground.
Read the article on the BBC Web site, and then listen to the extract from the radio programme 'Today'. You may need to listen twice or even times. It's 12 minutes long, but the speakers are quite clear.
When you have finished, see if you can write a comment summarising the arguments for and against Sir Ian's resignation.
I look forward to reading your comments.