Conversation so far:
Who created a lawsuit for Anwar al-Awlaki against the US government?
Anwar al-Awlaki's father, Nasser al-Awlaki, contacted the Center for Constitutional Rights and ACLU to represent his son in a lawsuit.
When did Nasser al-Awlaki open this lawsuit?
Nasser al-Awlaki opened the Anwar al-Awlaki lawsuit in 2010.

Question: Why did he create the lawsuit?
Self-contained rewrite: Why did Nasser al-Awlaki create the lawsuit