The program investigates historically relevant man-made and natural disasters.

Lately, however, the sharp rise in interest rates and a softer market have again made these programs well worth investigating.

The programme has investigated many topics, including the costs of the construction of the Holyrood site.

This weekly program investigates the spread of a specific social phenomenon in the Islamic world and the proposed solutions to get rid of it.

Sponsored by the California Energy Commission, this program is investigating the state's potential market for clean fuel vehicles.

This programme investigates the role played by a global multi-national.

The third program investigates how the push for economic reform is being obstructed by a privileged bureaucracy.

The program investigated Ramparts magazine, anti-war groups, and others, eventually building thousands of files on American citizens.

Produced by Temple Street Productions, the program investigates why and how various disasters have happened.

The program investigated over 3 million government employees, of whom 300 were dismissed as security risks.