Chronicles of Domestic Terrorism in United States of America, Part 2:

Jewish Defense League (JDL):
The JDL was the most controversial, yet the most effective of all Jewish organizations, which was established in 1968 by Meir Kahane.  This activist group has been responsible for bringing such issues as Soviet Jewry, Nazi war criminals, black & white anti-Semitism, and Jewish self-defense to the front page of every major newspaper. Meir Kahane believed that the major Jewish organizations in the United States had failed to protect America’s Jews from anti-Semitism, which he saw as exploding all over the country. JDL believes that "Violence in self-defense absolutely justifiable.

"In October 1970, a group of JDL members led by Kahane took over the executive offices of the Federation of Jewish Philanthropies in New York. They occupied the offices for two hours, demanding $6 million for “Jewish education." In September 14, 1972, members of the JDL were arrested in Los Angeles twelve hours after the bombing of an apartment building, which included among its tenants a Palestinian Arab. No one was injured. In June of 1973, two members of the organization were convicted on charges of assault. (Anti Defamation League, www.adl.org).

Puerto Rican Independistas: 
A terrorist group that is opposed to Statehood and advocating for Independence. They also demand the: removal of all foreign military bases and personnel; removal of all repressive agencies of the colonizing government like the FBI, DEA, etc.; transfer of all government powers to native jurisdictions; immediate release of political prisoners and prisoner of war; immediate economic retribution; and eligibility to vote in the plebiscite for everyone who migrated to the colonizing country and their descendants.

To achieve these goals they resorted to violence. On March 1, 1954, four armed pro-independence Puerto Rican terrorists opened fire from the visitors' gallery in the House of Representatives, wounding five members of Congress. Only four years earlier two like-minded terrorists had attempted to assassinate President Truman; they did succeed in killing a policeman.

The Puerto Rican Independistas are just as violent and have had more than forty years to improve their aim. in the 20th Century, Puerto Rico was the leading source of domestic terrorism in the United States and a far greater threat than militias, neo-Nazis, or Ku Klux Klan. Puerto Rican terrorists have been responsible for more than 120 bombings since the mid-1970s both on the island and in Chicago, New York City, and Washington, D.C.

Another Puerto Rican terrorist group the Los Macheteros has been responsible for attacks on military installations, federal buildings (including a rocket attack on the FBI offices in San Juan), and armed robbery to finance their criminal activity.

References:
Hewitt, Christopher. Understanding Terrorism in America: From the Klan to Al Qaeda.

Vohryzek-Bolden, M. Olson-Raymer, G. and Whamond,  J. O. Domestic Terrorism and Incident Management: Issues and Tactics. Springfilled, IL: Charles C. Thomas    

Southern Poverty Law Center - Fighting Hate, Teaching Tolerance, Seeking Justice
http://www.splcenter.org/