Below is a flyer from the Islamic supremacy group, Hizb ut-Tahrir's, first American conference held at the Hilton Oak Lawn near Chicago on July 19th.
By the way, their conference in Palestine was forbidden and hundreds were arrested.
A couple videos shown at their "Khilafah Conference USA":
Fall of Capitalism (Session 1 Intro Video) (everything, including terrorism, is the U.S. fault)
Hizb ut Tahrir's Global Activism:
Here's the flyer for their conference in Canada:
Still not convinced? Take a look at their flyer from the conference in Malaysia:
I will NEVER stay at another Hilton Hotel: