But critics have warned that its success has come at a price.

It was a move which critics warned would lead to a dictatorship.

But the economic impact could be much more damaging, critics warn.

But critics warn that if the lights go up, things could get ugly.

And critics warn that the system is ripe for abuse.

Critics warn that the program's future is in doubt if transferred to the states.

The university, critics warn, is in danger of selling its soul.

Critics of the Scottish government warn that will put off investment, if indeed it's not doing so already.

Electronic voting proved to be, as critics warned, a problem.

Critics warn that industry insiders will end up serving as the experts.