• Director of Security Studies and Professor of Criminology and Justice Studies, UMass Lowell
White nationalist demonstrators clash with counterdemonstrators at the entrance to Lee Park in Charlottesville, Va., on Aug. 12, 2017. AP Photo/Steve Helber

Indictments against a top extremism researcher and the SPLC force a reckoning on research ethics – an extremism scholar reflects on the field’s challenges

Indictments of a longtime extremism researcher and her former organization raise a crucial question for researchers in the field: What are the ethical limits on research about often-dangerous groups?
A Palestinian protester holds a placard showing a crossed-out noose during a rally in the Beit Jala village near Bethlehem, in the occupied West Bank. Mosab Shawer/Middle East Images/AFP via Getty Images

Israel’s death penalty law has little to do with criminal justice and everything to do with ethno‑nationalism

The vote to have death by hanging as the default for Palestinians guilty of killing Israelis represents the further entrenchment of a two-tier legal system.
A woman gathers children as law enforcement responds at a Michigan synagogue after an assailant drove a vehicle into the building on March 12, 2026. AP Photo/Corey Williams

How hatred of Jews became a common ground for Islamic terrorists and left‑wing extremists, fueling domestic terrorism

Geopolitical violence abroad translates into homegrown threats in the US and Canada. Recent antisemitic attacks show how the Jewish community is a target of those threats.
A boy in Scottsdale, Ariz., attends a Catholic rosary prayer vigil for Charlie Kirk after he was killed during a Utah college event on Wednesday, Sept. 10, 2025. AP Photo/Ross D. Franklin

‘This will not end here’: A scholar explains why Charlie Kirk’s killing could embolden political violence

Kirk’s killing reflects a broader political impasse in the US, where a significant percentage of the population supports political violence of some form.
Agentes do Serviço Secreto dos EUA ajudam o ex-presidente Donald Trump a sair do palco durante um comício em 13 de julho de 2024, em Butler, Pensilvânia. Anna Moneymaker/Getty Images

‘A um centímetro de uma possível guerra civil’

Um estudioso de assassinatos políticos afirma que os EUA evitaram por pouco mergulhar na violência generalizada e em uma possível guerra civil quando Donald Trump sobreviveu a uma tentativa de assassinato.
Protesters wave Israeli flags and protest Israeli Prime Minister Benjamin Netanyahu in Jerusalem on May 20, 2024. Matan Golan/SOPA Images/LightRocket via Getty Images

Most Israelis dislike Netanyahu, but support the war in Gaza – an Israeli scholar explains what’s driving public opinion

Israelis’ and Jewish people’s long-held feeling of persecution, dating back to biblical times, contributes to most Israelis’ desire to continue the war in Gaza.
An Oct. 19, 2023, rally in New York City’s Times Square demanding the freeing of hostages taken in the Oct. 7 attack by Hamas. Michael M. Santiago/Getty Images

Antisemitism has moved from the right to the left in the US − and falls back on long‑standing stereotypes

Antisemitism in the US is growing – and that growth appears to be related to the escalation of the conflict between Israel and Hamas. It also reflects a different political ideology than in the past.
U.S. troops in Afghanistan had better equipment, training and funding than the Taliban. AP Photo/Rahmat Gul

Why did a military superpower fail in Afghanistan?

It may be attractive to think that promoting democracy in occupied foreign countries is an appropriate moral and effective path for restoring security and stability. But it’s not accurate.
Militia members associated with the Three Percenters movement conducting a military drill in Flovilla, Ga., in 2016, days after Trump’s election. After his 2020 defeat, Three Percenters were involved in the Jan. 6, 2021 insurrection at the U.S. Capitol. Mohammed Elshamy/Anadolu Agency/Getty Image

Police, soldiers bring lethal skill to militia campaigns against US government

A leaked database shows at least 10% of the far-right Oath Keepers militia is active police or military – people professionally trained in using weapons and conducting sophisticated operations.
When blocking a highway, who is a domestic terrorist and who is a peaceful protester? And does it make a legal difference? David Ryder/Getty Images

The ‘domestic terrorist’ designation won’t stop extremism

Legally designating domestic extremist groups as terrorist organizations – as some in the US advocate now – will have limited benefits, if any at all.
A memorial vigil for the victims of the shooting at the Tree of Life Synagogue where a shooter killed 11 and wounded six on Oct. 27, 2018. AP Photo/Gene J. Puskar

Terror isn’t always a weapon of the weak – it can also support the powerful

The attack at a synagogue in Pittsburgh and the sending of pipe bombs to critics of the current administration are examples of the increase in the violence on the margins of the right.
Mourners embrace at a vigil for Richard Collins III, who was stabbed to death in College Park, Maryland. AP Photo/Brian Witte

Are many hate crimes really examples of domestic terrorism?

Like the death of Heather Heyer in Charlottesville, the murder of Richard Collins III was a symptom of violent extremism that should be treated accordingly.

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