As he stood in the open car, an extremist named John Schrank ran up to him, pulled a gun from his coat, and fired a bullet into Roosevelt's chest.

VOA: special.2010.09.16

The threat,made on December 31 in a message posted on an extremist Internet Web site, prompted the Naval Criminal Investigative Service to elevate the risk for all U.S.military and commercial ships sailing through an area stretching from Somalia to the Persian Gulf.

VOA: standard.2010.01.07

The attack was led by John Brown, an old anti-slavery extremist.

VOA: special.2009.06.18

He was an antislavery extremist.

VOA: special.2009.06.25

Al-Shabab is an al-Qaida-linked extremist group that controls vast areas of southern Somalia.

VOA: standard.2009.08.21

There'll be an equal and opposite reaction in the violent extremist community.

VOA: standard.2009.10.16

Pipes says that many Islamic schools are spreading extremist ideas and that they work to instill in their students an unhealthy notion that the only thing that matters in their lives is their Islamic identity.

VOA: standard.2010.07.12