In era of polarized politics, terrorism threats, social media, public accessibility has become fraught with risk

British PM, opposition leader make joint visit to church where Conservative lawmaker was killed; MPs press for protection after murder of 2nd colleague in 5 years

Authorities say suspect, reported to be of Somali descent, found to have 'a potential motivation linked to Islamist extremism'; police carrying out searches at London addresses

Five years after Islamist terror attacks that killed 32 in Brussels, Charles Michel says they made a threat that was hitherto theoretical 'very real'

Teenager says she lied about being in class when Samuel Paty showed cartoons of the Prophet Muhammad, and her father amplified the matter online, seemingly motivating Paty's killer

At Nice memorial for killing victims, Jean Castex says the ideology 'distorts the Muslim religion by twisting its scriptures'

Sites belong to people who are not suspects in terrorist killings, but 'there may be links to the alleged assassin'

Interior minister says 7,000 police and soldiers protecting synagogue services, warns of more Islamic terror attacks

Suspect allegedly yells 'Allahu Akbar' and threatens to 'blow everything up'; police start to reopen after several hours

Unidentified suspect in weekend attack near Lausanne on the run, was known to Switzerland's federal intelligence service