Back in January 2001, six influential Alberta conservatives sent then premier Ralph Klein the now famous 'firewall letter.' Under the heading 'Alberta Agenda,' the letter proposed withdrawing from the Canada Pension Plan, establishing a provincial police force, bypassing the Canada Revenue Agency in favour of the province collecting its own income tax, and Senate reform. These ideas were seen as fringe. Extremist even. But with the passage of time, some of the key measures in the firewall letter have influenced conservative policy in Alberta, and are now being set in motion 25 years later by Alberta Premier Danielle Smith.

This week, West of Centre host Kathleen Petty gets the inside story on the firewall letter, straight from two of its signatories. Ted Morton, an executive fellow at the University of Calgary's School of Public Policy and a former PC cabinet minister; and Ken Boessenkool, a longtime policy advisor who worked with former prime minister Stephen Harper (credited as the catalyst for the letter, and another one of its six signatories).

These insiders describe how the hostile reaction to the letter came as a surprise, as the ideas contained in the letter were things other provinces were already doing. They talk about the visceral reaction 25 years ago to the word 'firewall,' and how it came to be added to the letter. And how the nine questions on a referendum that Albertans will vote on in the fall is seen as 'anti-firewall letter.'

• Host: Kathleen Petty
• Guests: Ken Boessenkool, Ted Morton
• Producer: Diane Yanko