Somali-Canadian woman sues federal government over loss of security clearance at Pearson Airport - The Globe and Mail
![Levels of security – Security screening for government contracts – Security requirements for contracting with the Government of Canada – Canada.ca Levels of security – Security screening for government contracts – Security requirements for contracting with the Government of Canada – Canada.ca](https://www.tpsgc-pwgsc.gc.ca/esc-src/images/levels-of-security.jpg)
Levels of security – Security screening for government contracts – Security requirements for contracting with the Government of Canada – Canada.ca
![Subcontracting security requirements – Security requirements for contracting with the Government of Canada – Canada.ca Subcontracting security requirements – Security requirements for contracting with the Government of Canada – Canada.ca](https://www.tpsgc-pwgsc.gc.ca/esc-src/images/security-check-list-eng.jpg)
Subcontracting security requirements – Security requirements for contracting with the Government of Canada – Canada.ca
![Director of National Intelligence 4.2 Million Active Classified Security Clearances in 2010 | Public Intelligence Director of National Intelligence 4.2 Million Active Classified Security Clearances in 2010 | Public Intelligence](https://publicintelligence.net/wp-content/uploads/2011/09/security-clearances.png)