my ocndolences, in Russia some people tends to be as wulfs rejecting anybody who has got Degree in GIS and RS outside of Russia, but I am strongly suggesting you to get a Master In Canada as well. try to get an experience as well, then you may come back to russia and after coupl eof years working there, to open your own business:)
I understand you regarding Security Clearance, however in Russia, you shouldn't care so much about security clearance, think about salary and working atmosphere which is different from Canada and US, you will have so called cultural shock
Greetings from UW-Madison, one of the best US public schools in Geography, GIS and Remote Sensing.
Alexander