52 police officers from 7 US states spent a week in Israel. They trained with Israeli units, saw Israel’s state-of-the-art police academy, and held a ceremony at Jerusalem’s 9/11 memorial. They included members of Police Unity Tour – formed to honor police who made the ultimate sacrifice.

http://www.jpost.com/Israel-News/US-police-delegation-visits-Israel-to-learn-counter-terrorism-techniques-hold-911-ceremony-467277

https://www.youtube.com/watch?v=JSObYsI0Mhc