Should the driving age be increased? The tragic deaths of four teenage friends during Road Safety Week have brought renewed calls for the law to be changed.
Missing boys found dead in submerged car
Young victims: British people can drive at 17, or 16 if they are registered as disabled. Glossary
Snowdonia - A mountainous region in northern Wales. It is called Eryri in Welsh.
Atrocious - Very bad.
Niger - A landlocked country in West Africa. It has a population of 25 million.
European Commission - The executive body of the EU, responsible for suggesting new EU laws and overseeing their implementation.