how is Islam to blame for this? the two guys that killed those people also killed a muslim police officer, no religion tells you to go out and kill people willy nilly and if we are talking about which religion does the most terroist attacks then lets see the stats.
http://www.washingtonsblog.com/2013...ttacks-on-u-s-soil-between-1970-and-2012.html
2.5% of all terrorist attacks on U.S. soil between 1970 and 2012 were carried out by Muslims.* This is a tiny proportion of all attacks.
4.9% were carried out by Jewish groups such as Jewish Armed Resistance, the Jewish Defense League, Jewish Action Movement, United Jewish Underground and Thunder of Zion
7% by anti-abortion activists, who tend to be Christian
a Puerto Rican paramilitary organization carried out more than 120 bomb attacks on U.S. targets between 1974 and 1983, and there were some 41 attacks by Cuban exiles, and a number of attacks by other Latin American groups. If we look at worldwide attacks instead of just attacks on U.S
An FBI report shows that only a small percentage of terrorist attacks carried out on U.S. soil between 1980 and 2005 were perpetrated by Muslims.