Upon the NBA's return this weekend every player knelt during the national anthem while wearing a "Black Lives Matter" T-shirt. What is not clear is whether they intended to show their support for the idea that "black lives matter" (relatively uncontroversial) or the organization "Black Lives Matter" (very controversial). These athletes, as well as the leagues and corporations jumping on the "Black Lives Matter" bandwagon, should be asked to clarify which it is they are supporting in light of what we are learning about the organization.

Among the more disturbing things to come to light is BLM's connection to Muslim extremists. Few know the Muslim extremist movement better than Robert Spencer, a prolific author on the subject and the director of Jihad Watch. In an exclusive interview promoting his new book, "Rating America's Presidents," on my "Hidden Truth Show" podcast, Spencer revealed shocking details about how the two groups share ideology, strategy and objectives, and actively work together.