This mission was to honor the life of Sargeant Matt Maupin. The Westboro Baptist Church exists to offend people, but did not arrive to protest this mission.
They pull a permit with the city to exercise their right to free speech.
Then, if they are assaulted in any way, they will sue both the perpetrator & the city, for not protecting their right to free speech.
The Patriot Guard prevents the fallen soldier's grieving family from seeing this nonsense, by holding the American flag upright, & blocking view of the protestors.