Mark Blumis an American actor in movies, on television and stage... (wikipedia)
The process in Illinois is unique, and we're all closely following what is happening there.
There's good (grade 3), better (grade 2) and best (grade 1) in each lock classification.
Technology has advanced to the point where you have a 190-degree viewing angle. You can almost see the front of the door.
A deadbolt is perhaps the most common way to improve upon that which already may exist in a door.