MONTREAL

Months after two deadly homegrown terror attacks, Canada still hasn't developed a comprehensive strategy to counter radical Islamists, an expert says.

Michael G. Zekulin, of the University of Calgary, says it wasn't enough to seize the passports of Canadian terrorists Martin Couture-Rouleau and Michael Zehaf-Bibeau.

In a policy paper entitled Canada's New Challenges Facing Terrorism at Home, Zekulin said Canada must go further to protect national security.

"Canada has yet to release its national counter-radicalization strategy, something all of our closest allies have already done," the professor writes.

Zekulin, who often appears on the BBC and CNN, says the biggest danger to Canadians is complacency and denial.

"We cannot bury our heads in the sand and continue to suggest that Canada, for some inexplicable reason, is immune from this global phenomenon."

Last Oct. 20, Couture-Rouleau ran down and killed Warrant Officer Patrice Vincent in a Saint-Jean-sur-Richelieu, Que., parking lot.

Just two days later, Zehaf-Bibeau gunned down Cpl. Nathan Cirillo at Parliament Hill as he stood guard at the National War Memorial. The attacker then stormed Parliament, where sergeant-at-arms Kevin Vickers shot and killed him.

Prof. Zekulin says a Canadian anti-terror strategy requires a three-pronged approach:

-Short term: Prevent the next generation of violent Islamist radicals from emerging.

-Medium-term: Identify individuals who are already radicalized and who want to take action.

-Long term: Identify and manage the return to Canada of radicalized and violent individuals.