Malala Yousufzai, the Pakistani girl who was shot in the head by the Taliban for advocating girls' education, reacts after speaking at the opening of Birmingham Library in central England September 3, 2013. (REUTERS/Darren Staples)

India children wear mask of a 15 year old Pakistani Malala Yousufzai who was shot in the head by a Taliban gunman, during in a rally held in New Delhi, India on February 2, 2013 to raise awareness and to call for a 9per cent allocation of the Gross Domestic Product (GDP) on health and education a month before the announcement of the Union budget of India for the year 2013-2014. (EPA/ANINDITO MUKHERJEE)

Survivor female gas victims of 1984 Bhopal gas tragedy, under the aegis of Bhopal Gas Peedit Mahila Udyog Sangathan form a human chain to express their solidarity towards 14 year old Pakistani girl Malala Yousafzai for her courage, in Bhopal, India, October 13, 2012. According to reports, Malala Yousafzai was shot in the head and neck by Tehreek-e-Taliban Pakistan ( TTP ) militants in the town of Mingora for speaking out against the extremists and promoting education for girls and women in the Pakistan's Swat Valley. (EPA/SANJEEV GUPTA)

A child holds the portrait of Malala Yousafzai during a rally as she observe Malala day in Karachi, Pakistan, November 20, 2012. Pakistan on November 10 honored a schoolgirl who was the target of a radical insurgent hit squad as officials vowed to promote education and combat extremism in the South Asian nation. UN Secretary General Ban Ki-moon designated November 10 as Malala Day to recognize the teenager who championed female education after the Taliban banned girls' education and destroyed schools. Malala was attacked by Taliban on October 9 and wounded along with two schoolmates. After initial treatment, she was sent to Britain where she is recovering. (EPA/REHAN KHAN)

A man walks next to a sand sculpture of Pakistani schoolgirl Malala Yousafzai, who was shot by the Taliban, created by Indian sand artist Sudarshan Patnaik on a beach in Puri in the eastern Indian state of Odisha October 16, 2012. Yousufzai, who was shot in the head by the Taliban for advocating education for girls, has every chance of making a "good recovery", British doctors said on Monday as the 14-year-old arrived at a hospital in central England for treatment of her severe wounds. (REUTERS/Stringer)

Malala Yousafzai is seen recuperating at the The Queen Elizabeth Hospital in Birmingham in this handout photograph released October 19, 2012. Malala, a Pakistani girl shot in the head by Taliban gunmen is "not out of the woods" but is doing well and has been able to stand for the first time with some help, doctors at the British hospital treating her said on Friday. (REUTERS/Queen Elizabeth Hospital Birmingham)

Hospital staff assist Malala Yousafzai, a 14-year-old schoolgirl who was wounded in a gun attack, at Saidu Sharif Teaching Hospital in the Swat Valley region in northwest Pakistan October 9, 2012. According to authorities, gunmen in Pakistan shot and seriously wounded Yousufzai on Tuesday for speaking out against Taliban militants. Yousufzai became famous for speaking out against the Pakistani Taliban at a time when even the government seemed to be appeasing the hardline Islamists. (REUTERS/Hazart Ali Bacha)