Antisemitic incidents in the United States rose by about 400% in slightly over two weeks since war broke out in the Middle East after Palestinian Islamist group Hamas attacked Israel on Oct. 7, advocacy group Anti-Defamation League (ADL) said Wednesday. Read more at straitstimes.com.
They don't have to. They certainly sample, just like any other group. It is also how the SPLC tracks rises in hate activities.