Author's film Alexander Sladkova. A couple of years ago on the set of the popular program was launched in the sky several dozens of balloons, which led into a state of high combat readiness of the air defence system of the country. Technique reacted to the balls, the alarm was given, rose in the air fighters. This is an example of how sensitive modern appliances AA: it detects even small objects ? such as flying geese or a flock of geese.