This week BBC World News will be following the progress of the Olympic torch as it passes through Japan, Korea, Vietnam and Hong Kong. Will there be more celebrations than protests as it nears the final stages of its journey towards Beijing? In the UK, local elections should give a sense of the Labour government's current popularity ratings. And as Italy's new parliament meets for the first time - with far fewer parties represented – BBC World News asks whether it will usher in a new era in Italian politics.

On the morning of 16 April 2007, a 23-year-old student called Seung-Hui Cho (pictured) killed 32 people before turning his gun on himself. The incident at Virginia Tech university became the worst gun rampage in US history. Using extensive access to key witnesses, this programme delves into the mystery of how Cho, a young man with no criminal history, became a mass murderer.

(Duration: 55 minutes)

Please note this programme will not be shown in North America. 

Saturday 26th April at 1005

Repeated: Saturday 26th April at 1805; Saturday 26th April at 2205; Sunday 27th April at 0305;

Sunday 27th April at 1005; Sunday 27th April at 1805 & Sunday 27th April at 2205

Britain's Environment Minister, Phil Woolas, says the amount of money spent in the UK on bottled water is approaching the "morally unacceptable". He is urging consumers - who spend two billion pounds a year on bottled water - to go back to the tap. Bottled Water - Who Needs It? investigates whether the popularity of bottled water is a triumph of marketing over common sense.

(Duration: 30 minutes)

 Saturday 26th April at 1630<>

Repeated: Saturday 26th April at 2130/\; Sunday 27th April at 0530 & Sunday 27th April at 1330

Our World features some of the BBC's finest news items on current issues around the world. Frontline Afghanistan follows BBC correspondent Mark Urban as he's embedded with British troops around Musa Qala in Afghanistan. Joining the soldiers on operations, Mark talks frankly to them about the campaign ahead.

(Duration: 30 minutes)

 Wednesday 30th April at 2230

Repeated: Thursday 1st May at 1230; Thursday 1st May at 1530AP; Friday 2nd May at 1830;

Saturday 3rd May at 0430#; Saturday 3rd May at 1330; Sunday 4th May at 1630^;

Sunday 4th May at 2130/\; Monday 5th May at 0530# & Monday 5th May at 1030

Muslim extremist Abu Izzadeen has been sent to jail for inciting terrorism - but what of the next generation of radicals he's already inspired? A new Muslim organisation has opened with the aim of combating extremism - Newsnight talks to its founder and one of its critics. Barack Obama is still ahead of Hillary Clinton, despite her Pennsylvania win. This week's programme features a special report on Obama and speaks with Clinton's campaign chairman. Plus, the second of Newsnight's China-in-Africa films reports from Zambia.

(Duration: 50 minutes)

 Saturday 26th April at 1210

Repeated: Sunday 27th April at 0010 & Sunday 27th April at 1510

# not Asia Pacific, South Asia or Middle East                                                                     AP  Asia Pacific Only
^ not South Asia or Asia Pacific 
/\ not Middle East, North America or Latin America                                                          <> not Europe