The goal of modern law enforcement in the US is to just grow bigger and bigger and get more and more toys.
Start program. Don't tell anybody about it. In fact, make it illegal for people to know about it. Buy millions of dollars in equipment. Use equipment even if untested/ineffective. Buy more equipment and start more programs. Repeat. Gotta stop terrorism, after all.
Also, if someone starts to challenge your data source, be sure to settle or drop the case. We wouldn't want a legal challenge to have a chance of succeeding and stopping the unconstitutional practices.
Start program. Don't tell anybody about it. In fact, make it illegal for people to know about it. Buy millions of dollars in equipment. Use equipment even if untested/ineffective. Buy more equipment and start more programs. Repeat. Gotta stop terrorism, after all.