ABC News' Diane Sawyer conducts the first television interview with Malala Yousafzai, the 15-year-old schoolgirl from Pakistan who was shot in the head by Taliban assassins in October 2012 because she wanted to go to school.

In this July 12, 2013 photo, United Nations Secretary-General Ban Ki-moon, left, listens as Malala Yousafzai, right, addresses the "Malala Day" Youth Assembly, at United Nations headquarters. A year ago, Malala Yousafzai was a schoolgirl in northwest Pakistan. Today she's the world-famous survivor of a Taliban assassination attempt, an activist for girls' education.

Copies of a newly published book about Pakistani girl Malala Yousafzai are on display at a local bookshop in Islamabad, Pakistan, Oct. 8, 2013.

Malala Yousafzai, with her father Ziauddin, attends her first day of school on March 19, 2013 since being released from the hospital.

Malala Yousafzai is seen in this file photo taken on March 26, 2009 in Peshawar, Pakistan. She lived in the Swat Valley with her family until October 2012, when she was shot in the head by Taliban gunmen, but survived. The militants behind the attack, which was internationally condemned, claimed it was because she promoted secularism.

Malala Yousafzai is given the Leadership in Civil Society award by Queen Rania of Jordan at the Clinton Global Initiative's Citizen Awards Dinner, Sept. 25, 2013, in New York.

Malala is 12 years old in this March 26, 2009 file photo, and wants to become a politician. She is well-known as a child activist promoting education for girls, and began a blog for the BBC at age 11, telling of under Taliban rule in the Swat Valley in Pakistan, where she lived with her family.

Pakistani soldiers carry Malala Yousafzai from a military helicopter to a military hospital in Peshawar, Pakistan. A Taliban gunman walked up to a bus taking children home from school in Pakistan's volatile Swat Valley on October 9, 2012 and shot and wounded the 14-year-old activist known for championing the education of girls and publicizing atrocities committed by the Taliban, officials said.

Pakistani students hold pictures of Malala Yousafzai, who was shot on October 9, 2012 by the Taliban for speaking out in support of education for women, during a tribute at the Pakistani Embassy in Abu Dhabi, United Arab Emirates on Oct. 15, 2012.

Pakistani girls display a poster while sitting at their desk as their teacher, not shown, talks to them about 14-year-old schoolgirl Malala Yousafzai, who was shot on October 9, 2012 by a Taliban gunman for her role in promoting girls' education in the Swat Valley where she lives.

Pakistani civil society activists and journalists carry candles and photographs of Malala Yousafzai during a protest against the assassination attempt on her in Islamabad, Oct. 11, 2012. The shooting of the 14-year-old has been denounced worldwide and by the Pakistani authorities, who have offered a reward of more than USD 100,000 for the capture of her attackers.

Pakistani demonstrators chant slogans during a protest against the assassination attempt by the Taliban on child activist Malala Yousafzai in Islamabad, Oct. 16, 2012. In an attack which outraged the world, Malala was shot on a school bus in the former Taliban stronghold of the Swat valley last Tuesday as a punishment for campaigning for the right to an education.

Supporters of a Pakistani political party Muttahida Quami Movement (MQM) gather during a protest procession against the assassination attempt by Taliban on child activist Malala Yousafzai in Karachi, Oct. 14, 2012. Malala was shot in the head by the Taliban because she campaigned for the right to education is making "slow and steady progress" in her recovery, the military said.

A Pakistani student holds a picture of Malala Yousafzai during a tribute at the Pakistani Embassy in Abu Dhabi, United Arab Emirates, Oct. 15, 2012. Pakistan airlifted the 14-year-old activist who was shot and seriously wounded by the Taliban to the United Kingdom, which will give her access to specialized medical care and also protect her from follow-up attacks threatened by the militants.

Pakistani students carry placards with the photograph of child activist Malala Yousafzai during a protest against the assassination attempt by the Taliban on Malala in Lahore, Oct. 16, 2012.

In this undated image released by the University Hospitals Birmingham NHS Foundation Trust, on Oct. 19, 2012, showing 15-year old Pakistani shooting victim Malala Yousafzai, who is recovering in Queen Elizabeth Hospital in Birmingham, England, after being attacked and shot in the head by Taliban gunmen in Pakistan for advocating education for girls. She is reported to be improving.

Indian sand artist Sudarsan Pattnaik gives final touches on a sand sculpture in honour of Pakistani girl Malala Yousafzai at Puri beach, some 65 kilometers from Bhubaneswar, Oct. 16, 2012. In an attack which outraged the world, Malala was shot on a school bus in the former Taliban stronghold of the Swat valley October 9, 2012 as a punishment for campaigning for the right to an education.