The United States of America: after the election excitement the Obama team start planning for four more years. Paul Adams. Mali: preparations well advanced for a military operation to repel Islamist rebels from the north of the country. Afua Hirsch. Oman: the Arab Spring comes calling at the Gulf state once called 'a place of wind and spiders.' Matthew Teller. Georgia: Can the new government act to restore parts of the country now effectively under Russian control? Martin Plaut. The USA: A visit to NASA's Jet Propulsion Laboratory and a realisation that driving on Mars is harder than it looks. Richard Hollingham. Producer: Tony Grant