The decorated combat veteran who led the Biden administration’s efforts to counter extremist activity in the US military has warned there could be further domestic attacks by individuals with current or past military ties if the Pentagon fails to take the threat seriously. Both of the deadly incidents on New Year’s Day were carried out by discharged or serving members of the armed forces. The driver of a pickup truck who killed 14 revellers in New Orleans was a veteran with 13 years service in the US army, while the man who blew up a Tesla Cybertruck outside the Las...