Hello and thank you for joining us on the US politics live blog. I’m Vivian Ho and I will be bringing you the latest news over the next few hours. Frank “Mitch” Bradley, the US navy admiral who reportedly issued orders to fire upon survivors of an attack on an alleged drug boat, is expected on Capitol Hill on Thursday to provide a classified briefing to congressional lawmakers overseeing national security. Trump administration officials have defended carrying out the 2 September follow-up strike by arguing that the objective was to ensure the complete destruction of the boat – essentially mirroring the language in a secret justice department office of legal counsel (OLC) memo that purportedly said it was permissible for the US to use lethal force against unflagged vessels carrying cocaine since the cartels use the proceeds to fund violence. Still, questions continue to mount over the legality of the attack, particularly around the reasoning of the second strike and what orders the defense secretary, Pete Hegseth, gave.“This is an incredibly serious matter. This is about the safety of our troops.