The son of slain al Qaeda leader Osama bin Laden has threatened revenge against the United States for assassinating his father, according to an audio message posted online. Hamza bin Laden promised to continue the global militant group's fight against the United States and its allies in the 21-minute speech entitled "We Are All Osama," according to the SITE Intelligence Group. "We will continue striking you and targeting you in your country and abroad in response to your oppression of the people of Palestine, Afghanistan, Syria, Iraq, Yemen, Somalia and the rest of the Muslim lands that did not survive your oppression," Hamza said.