A more sophisticated version of failed underwear bomb would've been used on U.S.-bound flight from Yemen.
Read more...Abulmutallab faces 30 years to life in prison.
Read more...The claims came during opening statements in the high-profile case.
Read more...Umar Farouk Abdulmutallab called the United States a "cancer" and insisted Anwar al-Awlaki is alive.
Read more...Abdulmutallab will be tried in federal court on terrorism charges
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