Tornadoes

S1, E2: Tornadoes - they can appear at anytime, anywhere in the world and devastate entire regions: In most cases, they form within a few short minutes. Scientists are working under high pressure to better the forecasting and warning systems. Can we use modern technology to effectively counter this threat? Is there any chance to detect a tornado early and predict its direction? And what are our chances when a tornado heads straight for our towns and villages?