Analyst's note:  Most people see the hijab worn by Muslim women as religious or cultural, but the hijab is a symbol of the sharia (the regulation of all life's aspects and beyond by Islamic law) and has a very political meaning ...  to you and me as the unbeliever (kaffir). 

Islam is the tide that wants to wash away our civilization.  Remember Islam means "submission," NOT peace.  The purpose of jihad is not kill infidels.  The purpose of jihad is to institute sharia. The work of Islam in America according to the writings of the Muslim Brotherhood clearly states:

The Ikhwan must understand that their work in America is a kind of grand jihad in eliminating and destroying the Western civilization from within and sabotaging its miserable by their hands and the hands of the believers so that it is eliminated and God's religion is made victorious over all other religions. 

This grand jihad-by sabotage here in America is now raising, in our midst, it third generation of operatives and sympathizers.  The methodical campaign and its infrastructure have been made possible by untold billions in funding from the Kingdom of Saudi Arabia, which has been the Brotherhood's life-line since the 1950's.  Taking their lead from OUR U.S. government, the Saudis figure all will be well as long as they continue keeping their fingerprints off the bombs the ideology export makes inevitable.  Unlike Al-Qaeda, the Muslim Brotherhood does not focus on terrorism, but the end result is the same.  They  focus on such tactics as immigration, infiltration, intimidation, surveillance, propaganda, protest, deception, and political legitimacy. See Arabic "Catholic" Church has purchased the "Flight 93" Chapel and Muslim Brotherhood (ENEMY) Expands in United States.

Even though their motivating ideology is salafism, sometimes called wahhabism, these Islamist take advantage of the fact that most American's are in the dark regarding their goals.  Thus the Islamists are free to pass themselves off as moderates.  This then makes it politically palatable for the American left to collaborate with them in undermining the American establishment by eroding our liberty and national security.   Their goal is to ultimately supplant American constitutional democracy with Islamic law (sharia).