A person of "national security concern"A person of “national security concern” was granted permanent residency “due to a series of failures” by the Canadian border agency and immigration department.

2 departments make changes after ‘completely unacceptable’ mistake

The Canada Border Services Agency said its internal review policies and procedures have been ‘refined’ in light of the granting of permanent residency to a person of ‘national security concern.’ (CBC)

Full story here