Schwartz thinks that Clinton will
add strength to Obama's campaign
This week Barack Obama effectively won the race to become the Democratic nominee for president of the US. 
Following victory in Montana on the last day of the primary season, the Illinois senator now has majority support from the party's delegates.
This ends one of the most protracted and enthralling primary campaigns in modern history. 
Having beaten Hillary Clinton, Obama now looks set to become the first black candidate to contest a US presidential poll.
Sir David is joined by Laura Schwartz, a Democratic political commentator and former aide to President Bill Clinton. 
Schwartz says Hillary Clinton is open to taking the vice-presidential nomination if asked and if it will help the party. She says Clinton can help attract voters that Obama cannot reach in November's election.

Watch the interview with Laura Schwartz

Jonathan Gregson

Gregson says Maoists are under
pressure to perform well
After 239 years with a monarchy, the Himalayan nation of Nepal has become the world's newest republic. 
The Maoists, who won elections last month making them the largest political party, had pledged to abolish royal rule.
The landmark decision comes after a bloody 10-year civil war, which pitted Maoists against the constitutional monarchy. 
The conflict left more than 12,000 people dead and 100,000 displaced.  
Jonathan Gregson, an author and expert on the region, talks to Sir David. He says the Maoist victory was partly down to their control of rural areas. 
Having exploited the uncertainty created by the monarchy, Gregson says the Maoists must now perform well in government.
Douglas Feith
Feith says Bush took a correct decision
in removing Saddam Hussein [EPA]
The former White House spokesman Scott McClellan has caused a stir in the halls of Washington with the release of his new book, What Happened
In it he chronicles behind-the-scenes events in the White House and accuses George Bush, the US president, of rushing into an unnecessary war in Iraq.
Douglas Feith, the former US under-secretary of defence for policy, gives a different insight into the path to war in his new book, War and Decision.
Feith joins Sir David in the studio. He says that George Bush made a prudent and correct decision to remove Saddam Hussein. 
However, he says the single biggest mistake the US made was not to put Iraqis in charge of their own government promptly after the removal of Saddam.   
Rory Stewart
Rory Stewart went on to become the deputy
governor of two provinces in Iraq

In 2002 writer and historian, Rory Stewart, walked across Afghanistan. 
The following year, at the tender age of 30, he went on to become the deputy governor of two provinces in Southern Iraq.
Stewart was born in Hong Kong, raised in Malaysia, Vietnam and Scotland, and later studied history and philosophy at Oxford University. 
After a short stint in the army, Stewart joined the British Foreign Office.
Stewart talks about his 6000 mile walk from Turkey to Bangladesh, the kindness of people he met along the way and his love of Iraq and Afghanistan. 
He is optimistic that conditions in Iraq and Afghanistan will improve but says foreign troops should scale back their presence in the countries.

Watch the interview with Rory Stewart

Mick Hucknall
Mick Hucknall says he has a greater sense
of responsibility now [GALLO/GETTY]
Mick Hucknall was once one of the wild men of pop when his band, Simply Red, was topping the charts around the world in the 1980s and 90s. 
With hits like Holding Back the Years and Money's Too Tight To Mention, Simply Red won a string of awards.
Now Mick Hucknall is embarking on a solo career with an album celebrating the Blues legend Bobby Bland. 
Hucknall joins Sir David to discuss the new album, Blues music and Manchester United.
He says he has always listened to Blues music and wants to use its influence more in his own work. 
He says he has had enough of the rock & roll lifestyle and now has a stronger sense of responsibility.
Michele Verroken

Verroken suggests harsher punishments
for the use of performance-enhancing drugs
With less than three months to go until the Beijing Olympics, world athletics is in crisis after more revelations about drug taking. 
Former US sprinting coach, Trevor Graham, was this week convicted after a trial in which a number of his medal winning athletes admitted using performance-enhancing drugs. 
Earlier this year the American sprinter, Marion Jones, was stripped of her five Olympic medals after admitting taking steroids. 
Can athletics clean up its act?
Michele Verroken, the former head of the UK's sport drug testing programme, joins Sir David. 
Verroken says the sport has relied too heavily on drug testing and that athletes should face harsher punishments for using performance-ehancing drugs. 

Watch the interview with Michele Verroken

This episode of Frost over the World aired on Friday, June 06, 2008

Frost over the World airs at 18:00GMT every Friday on Al Jazeera English and is repeated during the week.

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Source: Al Jazeera