Many feel that swift measures must be taken to prevent further terrorist attacks but some experts differ on the best approach to take.

Pundit Jean Lapierre, appearing on CTV Montreal Thursday, counseled against overreaction.

“Everybody is ‘saying change the laws,’ but we have to be sure we don’t go crazy because the businesses dealing with fear and security are going to try to push us to the extreme. We have to be careful and keep a cool head,” he said.

Former CSIS officer Michel Juneau-Katsuya believes that peace officers should consider being more proactive in enforcing laws banning death threats and the promotion of hatred.

“Currently prosecutors are shy to go in that direction. We want freedom of speech but we need to be able to say ‘you went too far.’”

Juneau-Katsuya says that lone wolf attacks might be best prevented by intervention from family and friends, however.

“If our loved one is changing we need to address that as early as possible, if not it’s too late as the brainwashing takes full effect.”

Both Lapierre and Junea-Katsuya see a challenge in keeping Parliament Hill both accessible and safe.

“It will be important to learn to address the physical and logistical security on the Hill,” said Juneau-Katsuya.

Lapierre, a former MP, said that the lawn in front of parliament was considered so safe that Prime Minister Brian Mulroney would go out and shake hands and pose for photos.

“You feel sorry because the House of Commons and Parliament building are symbols of freedom and democracy. After what happened yesterday it will become more of a fortress, which is pretty sad to say the least."