Of all the many complaints about airport security and the TSA, one of the most common is that they make little distinction between plausible security threats and passengers unlikely to be doing anything wrong.

And a recent incident in Wichita, Kansas has reinforced that argument, as a four-year-old girl was apparently subjected to a humiliating ordeal after she hugged her grandmother while she was waiting in line.

The girl was accused of having a gun and declared a ‘high security threat’, while agents threatened to shut down the whole airport if she could not be calmed down.

When asked about the overbearing treatment the girl received, a TSA spokesman did not apologise and insisted that correct procedures had been followed.