PARIS (AFP) - The success of the operation to kill Osama bin Laden has not changed US President Barack Obama's plan to eventually close the Guantanamo Bay prison camp, Attorney General Eric Holder said Monday. Some opposition figures in the United States have argued that last week's commando strike was only possible thanks to clues gleaned by interrogating suspected Al Qaeda members at the US detention centre on Cuba. But, speaking to reporters in Paris, Holder said: "It is still the intention of the president, it is still my intention, to close the facility at Guantanamo, and we will continue our efforts in that regard. "We think that by closing that facility the national security of the United States will be enhanced," he explained, at a news conference after a meeting with French Interior Minister Glaude Gueant. "I'm not sure that the death of Bin Laden will have an impact on the timing of the closure," he said, after he was asked whether Bin Laden's death made it more or less likely that the jail would be closed. "Many of those who have opposed the closure of Guantanamo within the United States have done so on a basis that I'm not sure is affected by the death of Bin Laden," he argued. "But the president feels, as do I, that we can close Guantanamo and maintain the safety of the American people and ultimately make the United States more secure," he concluded. Obama came to office in January 2009 vowing to close the Guantanamo Bay prison within the first year of his mandate. He failed to carry through on that promise, but has insisted he still intends to do so. The site was set up by former US president George W. Bush to house alleged "enemy combatants" - suspected terrorists picked up by US military units and intelligence agencies around the world. Human rights groups challenge the legality of the camp and of the harsh interrogation techniques once used there, and its continued existence is seen by many as a propaganda gift to extremist militants. Meanwhile, passengers and crew restrained a Yemeni man after he pounded on the cockpit door of an airliner as it neared San Francisco, the third security incident on US planes in a single day, officials said Monday. The 28-year-old aboard the American Airlines flight, identified as Rageh Almurisi, got up from his economy class seat shortly before the plane was due to land late Sunday and shook the cockpit door violently. A flight attendant then tackled Almurisi, a Valejo, California resident. "He began to resist, so the flight attendant called for help and another flight attendant, a pilot who was a passenger on the plane and a couple other passengers helped get Mr Almurisi away from the cockpit door onto the ground, where they put him in flexible handcuffs," San Francisco police Sergeant Michael Rodriguez told AFP. The Boeing 737 landed safely with its 162 passengers and six crew unhurt, and Almurisi was taken into custody after getting checked at a local hospital for abrasions he sustained during the scuffle. He is being held for interfering with a flight crew, a federal charge. The FBI, San Mateo County Sheriff's Office and San Francisco police officers interviewed Almurisi. FBI spokeswoman Julianne Sohn said the incident was "still under investigation" and authorities had not yet determined whether it was terror-related. The San Francisco Police Department was on a "heightened alert status" as it is aware of "different incidents around the country." Earlier on Sunday, a Continental Airlines flight from Houston to Chicago landed safely in St. Louis after a 34-year-old Illinois man tried to open a door on the plane mid-flight. The rowdy passenger remains in custody, an FBI spokeswoman said, though no charges have been filed against him after he was questioned by the FBI and airport police. The diversion "does not appear to be related to terrorism," the FBI said. And that same morning, Delta Air Lines flight 1706 from Detroit to San Diego was diverted to Albuquerque, New Mexico, without incident due to an unspecified security scare. FBI spokesman Frank Fisher and an airport spokesperson declined to provide details, but said authorities searched the plane and interviewed crew and passengers but "no suspicious devices were found" and no arrests were made. The incidents took place amid heightened concerns over possible revenge attacks by Al-Qaeda in the wake of the death of the extremist group's leader Osama bin Laden in a dramatic US commando raid one week ago.