So let’s not keep track of known violent organizations... Let’s let it be a surprise every time!
Massachusetts was one of three states/cities, who produced more Communist Party/Soviet spied than any others (New York, Chicago/Ill.) so the police and FBI should be watching for new traitors and terrorists.
Remember the Melville Brigade and other terrorist groups of the 70’s? If you had a Venceremos Brigade organization (Cuban DGI/KGB), CPUSA - KGB/GRU, Socialist Workers Party - 4th International, Workers World Party - No. Korean Stalinists; Friendshipment - Hanoi; Medical Aid to Indochina and Medical Aid to El Salvador - Hanoi and CP ElSalvador; the same for CISPES - CP El Salvador and CPUSA - DC;, US Committee to Aid the National Liberation Front; SDS chapters, etc, then you had anti-American, usually communist/Marxist organizations with international communist ties ranging from Nicaragua, El Salvador, Cuba, Venezuela/Bolivia, to the ANC/CPSU of So. Africa, Namibia, Angola and Mozambique (plus Benin etc), to Iran, Libya, Pakistan, Iraq and Afghanistan, plus the Japanese Red Army.
Soviet spies operated in the electronics/defense industries in Massachusetts, Connecticut, possibly Rhode Island, DC/Md, shipyards, aircraft manufacturing facilities, weapons development labs, and even in the CIA.
The ACLU, in conjunction with CPUSA fronts (NECLC and NLG), as well as Cuban-allied traitor Phillip Agee/organization - Covert Action/Information Bulletin, viciously and successfully attacked and nearly destroyed the US domestic counter-intelligence organizations of the FBI and state/local police intelligence units. They were aided by leftist fool or traitor, Sen. Frank Church and his hearings/reports, as well as those of Rep. Pike, and later Boland (D-Mass), whose goals were to expose, disarm and destroy US intelligence organizations and operations, not reform them.
That is why 9/11 happened, Al Qaeda arose right under Clinton’s nose as did ISIS under Obama’s balls, and there has been Communist Bloc penetration of the US Congress from House Representatives (Soviet and Red Chinese supporters/ops) to massive penetration of our universities and businesses, esp. by Red China.
Now, more than ever, we need good, tactical surveillance of the violent Left groups - Antifa, Black Bloc/Red Bloc, BAMN (By Any Means Necessary), some of the Black Lives Matters chapters, the New Black Panther Party, and local “affinity” groups.
Once the corrupted leadership of the FBI, CIA, DNI and DOJ security divisions is broken up, tried, convicted and jailed, we might be able to rebuild these organizations with better leadership, tools, and well-thought out and justifiable goals.
As a former FBI/Congressional undercover operative, who knew many of the top counter-intelligence leaders of the FBI, Congress and local police departments, I can say that what the Church Committee did was nearly treason and blindly leftist stupidity, what the Clinton Administration was blind stupidity and dereliction of duty, and the Obama administration was just plain treasonous on all levels, aided by incompetence and liberal blindness on the part of those leaders who should have known better.
Whatever we are seeing now is the same as what I saw back in the 60’s from SDS/Weathermen, the Black Panthers, anti-Israel/pro-PLO/Hamas thugs, and possibly the rise, again, of Hispanic/Latino irredentist terrorist groups and movements.
And now we have the revival of Maoist, pro-Red China organizations from the Chinese Communist Party groups in universities to RC-heavily influenced American-Chinese political organizations (often by old Maoists including Rep. Judy Chu (D-Ca, Communist Workers Party and NY’s Grace Meng - CWP front).
I have only scratched the surface of communist subversion in America and have not even mentioned radical Islamic extremist groups and fronts (who often work with the communist legal fronts against the FBI and CIA).
It is worst than you think.