By Diana Magnay
The man accused of killing 77 people in a bomb and gun rampage in Norway last summer claimed self-defense on Monday.
"I acknowledge the acts but do not plead guilty, and I claim I was doing it in self-defense," Anders Behring Breivik told a court in Oslo, Norway.
Breivik made the remarks as he went on trial for the July 22 killings to which he has admitted.Read more of the CNN.com story here.
The Obama administration is proposing rules to govern the sale and transfer of ammonium nitrate, a potentially explosive substance that was used in the 1995 Oklahoma City bombing and reportedly was a component in the July bomb attack on a government building in Oslo, Norway.
The Department of Homeland Security on Tuesday announced proposed rules for an Ammonium Nitrate Security Program which would affect anyone who buys at least 25 pounds of the material. Those who want to buy or sell ammonium nitrate would be required to register with the federal government and their names would be run against the FBI's Terrorist Screening Database of known or suspected terrorists.
The group has come to everyone's attention because of Anders Behring Breivik's killing spree in Norway, now just over a week ago. He claimed in his rambling manifesto to represent a modern-day "Knights Templar". But who are they?
CNN's Fareed Zakaria examines the history of the Knights Templar and the serious terrorism threat from within.
Norway came under attack with a massive bombing in the heart of its power center and a shooting at a youth camp. Police say the attacks are linked, but no one has claimed responsibility so far.
The attacks are the largest in Europe in six years. What's behind it all? CNN's Tim Lister explains the possibility of terrorism, the potential reasons why Norway may have been a target and who may have been behind it. FULL POST
CNN terrorism analyst Paul Cruickshank says the Oslo blast has all the hallmarks of a major attack, although the exact cause is not known.
It's too early to draw any conclusions on whether it was terrorism and who would carry it out, says Cruickshank. But, he said, by looking at the extent of the damage, it was plain to see the hallmarks of a major attack.
Cruickshank said that in recent months, there had been increased "chatter" about Norway, which had been investigating militants suspected of being linked to al Qaeda.
Norway also drew the ire of al Qaeda for publishing the controversial political cartoons of the Prophet Mohammed that originally appeared in a Danish newspaper and sparked outrage in the militant Islamic community. FULL POST
Norway came under deadly attack Friday with a massive bombing in the heart of its power center and a shooting at the ruling party's youth camp outside the capital.
Security expert Will Geddes says Norway could be a terror target because it's seen as a "soft target."