This story on the Paris catacombs and underground is a collaboration between National Geographic and NPR News. Geographic Photographer Stephen Alvarez invited NPR's Jacki Lyden, contributing host and correspondent, along on a three-week expedition below the City of Light; the story is also the cover feature of National Geographic's February issue.
For days, Egyptian police and protesters fought to gain control of a key square in Cairo near the ministry that oversees the country's notorious security forces. Their ferocious fight peaked before dawn Saturday with police firing tear gas, rubber bullets and worse. But protesters refused to give up. They drove back the heavily armed force and burned their abandoned vehicles in the square.
Host Guy Raz talks to Tim Kaldas, a photographer on the ground in Cairo. Kaldas talks of wandering the streets of the city, where the police have withdrawn and the army has taken over. He says the next question is what the army will be asked to do: use force or try to maintain order without resorting to firepower.
Host Guy Raz talks to Georgetown University Professor Samer Shehata about what possible scenarios might work if Egyptian President Hosni Mubarek leaves office. He says a coalition government is possible under the right circumstances, but first there will have to be a change to the constitution.