Given a travel related situation, and given a specific question about the situation, summarize the question into a title

I'm a US citizen and I hold a Washington state Enhanced Driver's License. I'm living in Vancouver for a bit. 

Can I fly domestically without my passport? Micheal Seifert's answer indicates my license will work for the airline, but what about security?

The web says government-issued ID is acceptable for domestic travel, but that obviously presumes Canadian government. 

I get a normal US driver's license probably wouldn't work, but surely if it's good enough for CBS, it's good enough to fly? 

Can I fly within Canada with a US EDL?