Now one of Saul's servants was there that day, detained before the LORD; he was Doeg the Edomite, Saul's head shepherd. 1 Samuel 21:7
Every wise leader needs to have an intelligence department. That department can be a few men or thousands upon thousands spread across the world. It can be human intelligence or it can be highly sophisticated electronic intelligence.
When you think of modern day intelligence, you think of U.S. CIA, (former) USSR KGB, Israeli Mossad, United Kingdom's MI-6, James Bond-type stuff. King Saul had the benefit of human intelligence. Doeg happened to be at the right place at the right time to overhear David conversing with the priest. Doeg, oddly enough, was a shepherd by trade, but was loyal to King Saul.
You don't normally think of praying for intelligence departments because they often do things, well, "off the record," so to speak. To what extent? No one really knows, and I'm not sure we'd approve if we did know. Of course they are heavily regulated about what can and can't be done but there are gray areas (such as waterboarding as a fresh example).
Pray for those overseeing the intelligence in the country you live in. Pray that they will make wise decisions, especially when lives are on the line.