How many high schools in the US have an open campus?
There is no specific data provided in the articles regarding the exact number of high schools in the US with an open campus. However, the articles discuss various aspects of open campuses, such as the freedom they provide to teachers and students, and the potential issues that arise, like campus safety and student discipline. These factors may influence the number of schools adopting an open campus policy, but without specific data, it's difficult to determine the exact count.