WASHINGTON (Online) - US President Barack Obamas top counter-terrorism aide says the United States is determined to destroy Al-Qaeda, whether its in Pakistan, Afghanistan, or in Yemen. The United States has indications that Al-Qaeda is planning an attack against a target in the Yemeni capital of Sanaa, John Brennan, Obamas Assistant for Homeland Security and Counter-Terrorism, said in a series of TV talk shows Sunday. The group had several hundred members in Yemen and was posing an increasing threat there. This is something that weve known about for a while, he told CNN. Were determined to destroy Al-Qaeda, whether its in Pakistan, Afghanistan, or in Yemen. A Nigerian man, Umar Farouk Abdulmutallab, who is charged with attempting to bomb a US aircraft on Christmas Day, was trained at one of the militant training camps hit during a December operation, Brennan said on Fox News Sunday. Brennan said there were several hundred Al-Qaeda members in Yemen and that we are doing everything possible to scour all the intelligence that is out there to see whether or not theres another Abdulmutallab out there. Responding to former vice-president Dick Cheneys criticism of White Houses terrorism-fighting policies, Brennan said he had worked for five administrations and that Obama was as determined as anyone to keep the nation safe. Cheney said last week that Obama is trying to pretend that the US is not at war with terrorists. The result, the Republican Cheney said, is that Americans are less safe. Im very disappointed in vice-presidents comments, Brennan said, adding that partisan politics should be put aside when something as important to national security as the threat of terrorism. It continues to haunt us. And we have to make sure that we stay focused on Al-Qaeda. And so thats what Im going to do in this job. I dont care what Republicans or Democrats say out there. We need to continue to prosecute this war because Al-Qaeda the organization needs to be destroyed.