US President Barack Obama has said that Pakistan's real enemy is the cancer of terrorism within, not India. Addressing a joint press conference with the visiting Afghan President Hamid Karzai in Washington, he said, there has been in the past a view on the part of Pakistan that their primary rival, India, is their only concern. President Obama said, the US goal is to break down some of the old suspicions and continue to work with the Pakistani government to see their interest in a stable Afghanistan which is free from foreign meddling.