Read CNN's Fast Facts about recent cases of foreign governments detaining US citizens.
Read CNN's Fast Facts on the Kyoto Protocol, an agreement reached in Japan in 1997, mandating that industrialized nations cut their greenhouse gas emissions.
Becky left Nigeria when she was 15, in search of the European dream. Instead, she was forced into prostitution in Italy.
For more information on how you can help in a particular country you've seen highlighted on CNN, explore our country-by-country resource list.
CNN's Matthew Chance examines Russia's history of being linked to alleged poisonings.
Twenty-three Russian diplomats have left the UK for Moscow less than a week after being expelled over the poisoning of a former spy in Britain.
View CNN's Fast Facts on the life of Jane Goodall and learn more about the world renowned primatologist and conservationist.
View CNN's Fast Facts to learn more about Elton John, the award-winning singer, composer and pianist.