Anti-terrorist expert Brian Michael Jenkins has said that a suspected terrorist raid on an Indian train that killed 76 people points to a trend that can confront governments worldwide with a security risk of major proportions.

According to the reports, Jenkins' comments followed security experts' reports that security of hundreds of miles of rail, if threatened, would be one of the hardest operations to contain and control.

After the United States, Russia and China, India has the world's fourth largest rail network, but reputedly is the largest handler of railroad people traffic in the world. Train traffic in India averages 14,000 journeys per day.

Maoist rebels were responsible for a train collision May 28, caused when a speeding freight train rammed into an express passenger train from Kolkata to Mumbai minutes after it derailed, Indian police had said. The derailment occurred because a part of the track was removed, Police noted. Several carriages crammed with passengers were hit by the cargo train traveling on an adjacent line.

Trains have been frequently attacked by Maoist rebels in India who also warned of further violence before the latest attack.

Jenkins, director of National Transportation Security Center of Excellence at Mineta Transportation Institute in San Jose, Calif., established and funded by the U. S. Congress, said that the train derailment could have serious implications for other countries.

The Indian raid, he said, has raised the risk of copycat actions.

He further said that terrorists make note of methods, taking lessons from all attempts, whether successful or not, and these lessons can be applied to other systems.

Jenkins, who was invited to India earlier to advice on railroad security, said, "The death toll between 2000 and 2010 is 13 times greater than that in the 1990s, although, owing to two bloody incidents, it is only slightly greater than the 1980s." (With Inputs from Agencies)