Yes, I can confirm that a number of years ago our office recommended that travellers be advised through this notice. Notices do appear at land borders.
More generally, I would say that we've impressed on government departments and agencies, including CBSA, the need to be transparent in the uses that will be made of the information. There's progress there in the information that was made public by the government, including Minister Goodale, on the uses to which the information would be put.