<p>Federal investigators arrested an Alabama man this week for attempting to assassinate then-US president Joe Biden in 2024, the latest in a string of violent incidents or attempted attacks in the US tied to the anti-Israel movement.</p><p>Adam Benjamin Hall, 23, allegedly brought a firearm to a debate between Biden and Donald Trump, then the Republican candidate, held in Atlanta, Georgia, on June 27, 2024, to kill Biden. Hall failed to enter the debate, federal prosecutors said.</p>