From Breitbart:

Lawyers for a young Nigerian accused of trying to blow up a US plane on Christmas Day pleaded not guilty Friday, as he faced life imprisonment on six charges.
Wearing a white T-shirt and beige trousers, 23-year-old Umar Farouk Abdulmutallab spoke to confirm his name, age and that he had read a copy of the indictment against him, as a lawyer entered a not guilty plea on his behalf.
Abdulmutallab also confirmed he had taken medication to treat injuries, but said it did not affect his ability to understand the charges against him.