H.Esfandiari

The World's Jeb Sharp reports that Iran has apparently detained an Iranian-American scholar who had travelled to Tehran to visit her elderly mother. Haleh Esfandiari works at the Woodrow Wilson Center for Scholars in Washington. Iranian officials had refused to let her leave the country in December. Now her husband says Esfandiari is being held in prison.

The World's Matthew Bell looks back at Tony Blair's time as British prime minister, and his relationship with the United States. Tomorrow, Blair is expected to announce the date on which he will step down from office.

US-Afghan relations may have suffered a severe blow last night. An Afghan official says US-led military forces killed 21 civilians in an air strike while battling Taliban fighters. The strike occurred the same day that a US commander in Afghanistan issued an apology for the killing of 19 civilians in March. Anchor Lisa Mullins gets the story from the BBC's Alastair Leithead, who's in the capital, Kabul.

Anchor Lisa Mullins speaks with 95-year-old former war correspondent Ruth Gruber. She has a new book out about some of her most challenging assignments. Those include her coverage of European Jewish refugees during and after World War Two.

Anchor Lisa Mullins speaks with alternative energies expert Gregory McRae, about the global push for bio-fuels. The concept of turning plants into fuel is gaining popularity in the fight against global warming. But experts warn that there's also a downside...for the economy and the environment.

The World's Technology correspondent Jason Margolis reports on a new car coming out of Canada. The ZENN Motor Company in Toronto has unveiled a new automobile that's small, quiet, affordable...and all-electric.

Pope Benedict begins a 5-day visit to Brazil today. It's still the largest Catholic country in the world, but as The BBC's Gary Duffy reports, the number of Catholics are decreasing, while Evangelical churches are on the rise.

Our daily geography puzzler.

Today's answer is Montreal. Anchor Lisa Mullins gets the answer from local radio personality Marc-Antoine Audette, who specializes in spoof radio interviews.

The World's Marco Werman profiles El Arrebato, one of the biggest selling Spanish musicians in Spain.