The current cases also come as recent studies have raised questions about the accuracy of canine drug alerts.

CNN: Supreme Court sides with dog in search case

On Election Day in the U.S., with the presidential race going down to the wire and predicted to be among the closest in history, concerns are being raised by both parties about the possibility of a drawn-out battle over the reliability and accuracy of polling systems and vote counts.

FORBES: The U.S. Should Learn From Venezuela How to Hold Elections