The future of humanity is at risk. That's the message from the world's top experts in Artificial Intelligence, who released the following statement overnight: "Mitigating the risk of extinction from AI should be a global priority alongside other societal-scale risks such as pandemics and nuclear war."

It comes after last month's plea from hundreds of leaders in the field, calling for a pause in the technology's development to allow time for governments to catch up. 

Stuart Russell has been studying AI for 40 years, advising the World Economic Forum, the UK and US governments. He spoke to 7.30's Sarah Ferguson. 

• Part 1 - Cities around the world

• Part 2 - Reykjavik 

• Part 3 - Cape Town

• Part 1 - What is your favourite food?

• Part 2 - International food 

• Part 3 - What is cooking?

The Happy Prince tells the story of a prince who lives his life in luxury

Rob's Christmas Cookies

Learn ten cooking verbs

Merry Christmas everyone! Watch Rob make some festive biscuits and learn some cooking vocabulary.

• Part 1 - What do you think of London?

• Part 2 - Museum and galleries

• Part 3 - More things to do and see

• Part 4 - Positives and negatives

Have a happy Halloween and learn some scary English idioms of 'fear' with The Teacher in Pluckley, Britain's most haunted village:

For Halloween, The Teacher introduces you to three idioms connected with fear: 

• 1. Shaking like a leaf 

• 2. Scared stiff 

• 3. It sends shivers up and down my spine 

English Eye Idioms

Do you want to improve your English? Then, keep an eye on this lesson as I bring you three useful idioms to help boost your English skills. 

• Keep an eye on something 

• Have eyes in the back of your head 

• Eyes are bigger than your stomach