they are showing 'stock' photographs of what tonights event may be even though it ain't happened yet.
The story goes....
A wealthy gentleman was badly bitten by bugs while riding on a certain railway line. Arriving at his destination, he wrote the company an indignant letter and received a prompt reply. It was, said the letter, the first complaint the company had ever had of this nature. Inquiry had failed to reveal any explanation for this unprecedented occurrence. Nevertheless, a number of new precautions were being taken to make absolutely certain such an unfortunate incident never happened again. The letter was signed by a high official of the railway.
The gentleman was well satisfied with this reply and was returning it to the envelope when a slip of paper fell out onto the floor. The hastily scribbled note on it read: "Send this guy the bug letter."