When Mario Arreola-Botello was pulled over, he didn't understand much of what the Oregon police officer was telling him. Botello, a Latino, non-native English speaker, was stopped for failing to signal a turn and a lane change, his attorney, Josh Crowther told CNN. What happened next sparked a years-long court battle that landed at the state's supreme court. In a November ruling, the court decided officers in the state were no longer allowed to ask questions that were irrelevant to the reason of the traffic stop. It's an issue that's often been tackled in courts across the country, but a...