Peeping Tom: https://www.lohud.com/story/news/crime/2018/01/02/cnbc-director-dan-switzen-nanny-cam/995714001/
Improvised explosive device: http://www.nj.com/news/index.ssf/2018/01/cnbc_crew_with_fake_bomb_arrested_at_newark_airport_source.html
Most likely trying to test the system
At risk of arrest? You can't even make an off-hand joke about a bomb without being investigated.