The more confidence an official can have in the identity of an individual in front of them—confidence in knowing who that person is, in knowing that person's background and whether there is criminality in their past—and the more accessible that information is, the more reliable it is, the better the screening that can be done and the easier it will be to prevent these individuals from appearing at a port of entry or somehow entering Canada improperly.
On March 8th, 2012. See this statement in context.