The World's Alex Gallafent returns to Istanbul, Turkey, to report on a massive public works project in the city. It's an effort to dig a tunnel that will connect Istanbul's European and Asian sides. As the tunnel is dug, Istanbul's history starts to emerge, sometimes slowing the project down.

Senator Barack Obama has relatives in Kenya, his late father's birthplace. Today Kenyan opposition leader Raila Odinga claimed he was related to the Democratic presidential contender. But there are reasons to doubt the claim.

Economists predict that the US dollar will continue to weaken in 2008. The loss of value affects Americans who travel or those who buy imported products. But as The World's Jason Margolis reports from Bangkok, Thailand, the sliding dollar hits people and businesses in other countries as well.

Anchor Lisa Mullins speaks with Vali Nasr from the Council of Foreign Relations about the current tensions between the United States and Iran. Today, President Bush blamed Iran for a tense encounter involving US Navy vessels in the Persian Gulf last weekend. Iran denies any wrong-doing.

The World's Quil Lawrence reports on how Israelis view President Bush's trip to the Middle East this week. During his trip, Mr. Bush will make stops in Israel and the West Bank.

Entire program - Jan 8, 2008

The World's Marco Werman tells us about Kenyan musician Juma Adballa and his group the Tutu Band. They've been preaching brotherhood and peace even as Kenya has erupted into a wave of violence following a disputed election.

Reporter Matthew Brunwasser reports on results from a presidential election in Georgia. Incumbent president Mikheil Saakashvili, has claimed re-election victory. But opposition parties haven't accepted the results.

Today's answer is Switzerland, where at least a third of the population skis or snowboards. The number of accidents on the slopes is on the rise...and insurance companies want to reverse that trend. Anchor Lisa Mullins finds out more from Claudio Casparis -- he's a skiing accident expert with the Swiss Accident Insurance agency.

The World's Alex Gallafent takes us on a guided tour of Istanbul, Turkey this week. Today, Alex focuses on how Istanbul residents identify with the city's storied and glorious past -- while trying to move the ancient city into the future.