The post title is misleading, and I think looking at the article makes it a lot clearer what is happening and why:
Federal authorities told demonstrators Friday that there would be “no more prayer” in front of or inside the Broadview ICE facility, in a move that mystified local leaders and raised legal questions.
A federal representative delivered the news to a huddle of faith leaders and activists standing outside the Immigration and Customs Enforcement facility Friday, speaking after faith leaders were denied entry to the building for the third time Friday.
In other words, prayer is being used as a form of protest outside the Broadview ICE facility. The solution, if you're the US government, apparently, is to ban prayer!
It's Gritney , bitch