Minneapolis tracks the movement of cars with a network of automatic license plate readers. Phone companies keep records on the locations of cellular customers. Today’s Question: What rules ought to govern the use of information about the movement of private citizens?

A state lawmaker plans to introduce legislation that would allow teachers to carry guns in Minnesota schools. Rep. Tony Cornish says arming staff members would help prevent attacks like the Sandy Hook shootings in Connecticut. (The NRA on Friday proposed posting armed guards in schools.) Today’s Question: What do you think of allowing teachers to Read more