The World's Gerry Hadden reports on a new musical instrument invented in Spain. It's called the Reactable, and it's sort of a blend between a synthesizer and a turntable.

For today's Geo Quiz we wanted to know which sea is connected to Northern Ireland's Strangford Lough. The answer is the Irish Sea. Anchor Lisa Mullins speaks with Martin Wright, managing director of Marine Current Turbines that's trying to generate electricity from the tidal currents that flow through the narrows between the Strangford Lough and the sea.

Anchor Lisa Mullins explains what's taking so long to sort out the chaos that followed the opening last week of the new Terminal 5 at London's Heathrow Airport.

Our daily quiz.

Ursula Lindsey reports from Cairo on Egypt's bread crisis. The price of a loaf of bread is rising, while Egyptians' salaries stay the same. The result is huge lines outside Egypt's government-subsidized bakeries, which are struggling to fill the demand.

Anchor Lisa Mullins speaks to David Horovitz, editor of the Jerusalem Post, about Secretary of State Condoleezza Rice's just-concluded Middle East trip. Horovitz remains skeptical that Rice was able to move Israelis and Palestinians any closer to implementing a peace deal.

The World's Jason Margolis reports on the relative calm in Basra and Baghdad today. There was violence, such as rockets being fired into Baghdad's Green Zone. But the fighting between government troops and Shiite militias has quieted down after the cleric Moqtada al Sadr ordered the militias to stop.

Anchor Lisa Mullins explains how British scientists think they've figured out what happened to the ancient cities of Sodom and Gomorrah. It involves an ancient clay tablet and an asteroid.

Orlando de Guzman reports from the Sulu Archipelago, a dangerous region in the southern Philippines. Rebels with suspected links to al Qaeda are active there, and so are US-backed government troops trying to hunt the rebels down. Sulu residents live in fear and insist they must have weapons to stay safe.

Todd Melby reports on efforts by Somali-Americans to focus more attention on the conflict taking place in Somalia. The East African country is driven by violence, as government troops backed by Ethiopia fight against Islamist insurgents.

Somali-Americans: photo: Todd Melby