Originally Posted by
eyecue
"There are video cameras present and the airport that I am at says "This area is under audio and video surveillance."
The other thing is that there is no expectation to privacy in the airport."
Do you know why the microphones would be placed at the end of the checkpoint(according to the OP)? I thought it was illegal to record sound when you already have video surveillance. Otherwise, convenience stores would be using both as would other businesses that experience higher than normal criminal activity.