Mass murderer Anders Behring Breivik, makes a salute after arrives at the court room in Oslo Friday Aug. 24, 2012 Breivik was convicted Friday of terrorism and premeditated murder for bomb and gun attacks that killed 77 people and sentenced to a special prison term that would allow authorities to keep him locked up for as long as he is considered dangerous. (AP Photo/Heiko Junge / NTB scanpix, Pool)

Mass murderer Anders Behring Breivik, makes a salute after arrives at the court room in a courthouse in Oslo Friday Aug. 24, 2012 . Breivik, who admitted killing 77 people in Norway last year, declared sane and sentenced to prison for bomb and gun attacks.(AP Photo/Heiko Junge / NTB scanpix, Pool)

Mass murderer Anders Behring Breivik, centre, arrives at the court room in a courthouse in Oslo Friday Aug. 24, 2012 . Breivik will receive his judgment for Norway's worst peacetime attacks, a bomb and gun rampage that left 77 people dead in July last year. (AP Photo/Heiko Junge / NTB scanpix, Pool)

Judge Wenche Elisabeth Arntzen passes judgment against confessed mass killer Anders Behring Breivik in the Oslo court room Friday Aug. 24, 2012. Anders Behring Breivik has been declared sane and sentenced to prison for bomb and gun attacks that killed 77 people last year. Reading the ruling, Judge Wenche Elisabeth Arntzen handed down a sentence of "preventive detention" of at least 10 years and a maximum of 21 years. However, such sentences can be extended under Norwegian law as long as an inmate is considered dangerous. (AP Photo/Cornelius Poppe / NTB scanpix, Pool)

Mass murderer Anders Behring Breivik, makes a salute after arrives at the court room in a courthouse in Oslo Friday Aug. 24, 2012 . Breivik, who admitted killing 77 people in Norway last year, declared sane and sentenced to prison for bomb and gun attacks. (AP Photo/Heiko Junge / NTB scanpix, Pool)

A Norwegian court has ruled that mass killer Anders Behring Breivik is sane, sentencing him to 21 years in prison. Pic shows: Screen grab of Anders Behring Breivik hearing the judgment

A Norwegian court has ruled that mass killer Anders Behring Breivik is sane, sentencing him to 21 years in prison. Pic shows: Screen grab of judge Wenche Elizabeth Arntzen delivering the judgment

Mass murderer Anders Behring Breivik, right, has his handcuffs released after he arrived at the court room in a courthouse in Oslo Friday Aug. 24, 2012 . Breivik has been declared sane and sentenced to prison for bomb and gun attacks that killed 77 people last year. (AP Photo/Frank Augstein)

Presiding Judge Wenche Elizabeth Arntzen of the trial of mass murderer Anders Behring Breivik arrives at the courtroom, Friday, Aug. 24, 2012, in Oslo, Norway. Breivik was convicted Friday of terrorism and premeditated murder for bomb and gun attacks that killed 77 people and sentenced to a special prison term that would allow authorities to keep him locked up for as long as he is considered dangerous. (AP Photo/Frank Augstein)

Norwegian Anders Behring Breivik gestures as he arrives at the courtroom, Friday, Aug. 24, 2012, in Oslo, Norway. Anders Behring Breivik has been declared sane and sentenced to prison for bomb and gun attacks that killed 77 people last year. Reading the ruling, Judge Wenche Elisabeth Arntzen handed down a sentence of "preventive detention" of at least 10 years and a maximum of 21 years. However, such sentences can be extended under Norwegian law as long as an inmate is considered dangerous. (AP Photo/Frank Augstein)

Norwegian Anders Behring Breivik gestures as he arrives at the courtroom, Friday, Aug. 24, 2012, in Oslo, Norway. Anders Behring Breivik has been declared sane and sentenced to prison for bomb and gun attacks that killed 77 people last year. Reading the ruling, Judge Wenche Elisabeth Arntzen handed down a sentence of "preventive detention" of at least 10 years and a maximum of 21 years. However, such sentences can be extended under Norwegian law as long as an inmate is considered dangerous. (AP Photo/Frank Augstein)

Mass murderer Anders Behring Breivik, arrives at the courtroom in a courthouse in Oslo Friday Aug. 24, 2012 . Breivik was convicted Friday of terrorism and premeditated murder for bomb and gun attacks that killed 77 people and sentenced to a special prison term that would allow authorities to keep him locked up for as long as he is considered dangerous. (AP Photo/Frank Augstein)

The hands of Anders Behring Breivik are seen in handcuffs as he arrives in the courtroom, in Oslo, Norway Friday, Aug. 24, 2012. Anders Behring Breivik was convicted Friday of terrorism and premeditated murder for bomb and gun attacks that killed 77 people and sentenced to a special prison term that would allow authorities to keep him locked up for as long as he is considered dangerous. (AP Photo/Frank Augstein)

The hands of Anders Behring Breivik are seen in handcuffs as he arrives in the courtroom, in Oslo, Norway Friday, Aug. 24, 2012. Anders Behring Breivik was convicted Friday of terrorism and premeditated murder for bomb and gun attacks that killed 77 people and sentenced to a special prison term that would allow authorities to keep him locked up for as long as he is considered dangerous. (AP Photo/Frank Augstein)

Mass murderer Anders Behring Breivik, hands are seen in handcuffs as he arrives at the court room in a courthouse in Oslo Friday Aug. 24, 2012 . Breivik was convicted Friday of terrorism and premeditated murder for bomb and gun attacks that killed 77 people and sentenced to a special prison term that would allow authorities to keep him locked up for as long as he is considered dangerous. (AP Photo/Frank Augstein)

Mass murderer Anders Behring Breivik, makes a salute after he arrives at the court room in a courthouse in Oslo Friday Aug. 24, 2012 . Breivik has been declared sane and sentenced to prison for bomb and gun attacks that killed 77 people last year. (AP Photo/Frank Augstein)

Mass murderer Anders Behring Breivik, talks to his lawyer Vibeke Hein Baera,, right, in the courtroom in Oslo Friday Aug. 24, 2012 . Breivik was convicted Friday of terrorism and premeditated murder for bomb and gun attacks that killed 77 people and sentenced to a special prison term that would allow authorities to keep him locked up for as long as he is considered dangerous. (AP Photo/Frank Augstein)

May 24, 2012 - Oslo, Norway: Norwegian terrorist and right wing extremist Anders Behring Breivik appears in court during his ten week trial in the Oslo courthouse. Breivik has been accused of mass murder during the 2011 attacks in Norway. Breivik bombed government buildings in Oslo, killing eight, and carried out a mass shooting at a Workers' Youth League-run summer camp, killing 69. (Alexander Widding/Polaris)

May 24, 2012 - Oslo, Norway: Norwegian terrorist and right wing extremist Anders Behring Breivik appears in court during his ten week trial in the Oslo courthouse. Breivik has been accused of mass murder during the 2011 attacks in Norway. Breivik bombed government buildings in Oslo, killing eight, and carried out a mass shooting at a Workers' Youth League-run summer camp, killing 69. (Alexander Widding/Polaris)

May 24, 2012 - Oslo, Norway: Norwegian terrorist and right wing extremist Anders Behring Breivik appears in court during his ten week trial in the Oslo courthouse. Breivik has been accused of mass murder during the 2011 attacks in Norway. Breivik bombed government buildings in Oslo, killing eight, and carried out a mass shooting at a Workers' Youth League-run summer camp, killing 69. (Alexander Widding/Polaris)