Before revision: Historically, surveillance has been used by the NYPD for a range of purposes, including against crime, counter-terrorism, and also for nefarious or controversial subjects such as monitoring political demonstrations, activities, and URL and even entire ethnic and religious groups.
After revision: Historically, surveillance has been used by the NYPD for a range of purposes, including against crime, counter-terrorism, and also for nefarious or controversial subjects such as monitoring political demonstrations, activities, and protests, and even entire ethnic and religious groups.