Who is David Stark from Dragon Bones: A Novel and what is their importance?

David Stark is an American lawyer who is married to Liu Hulan. He is known in China for his ability to handle delicate matters for the government, as well as for political and business figures in a way that preserves the dignity of the government. David's character in the novel is unique. He represents admired foreign interest in China. David would normally be under scrutiny, but because of his wife, he is instead used as an asset to the country. David is cautious, and understands the positions of the Chinese government, although he still believes firmly in the policies of the United States. It is David's abilities that allow him to thrive in China and his marriage to Hulan that gives him the privileges of a citizen.