Hello, the application for my parents' PGP is under progress. It has cleared all security, criminality, medical checks and should be in final stages. Meanwhile, they got approved for a regular visitor visa (not super visa). Now, the question is whether to do a one-way ticket or a return ticket? I would want to do a one-way ticket in case the PGP gets finalized while they are here. But people are suggesting to do a return ticket since its a tourist visa otherwise my parents will face trouble with the immigration officer. Any thoughts are appreciated. My parents have been to Canada and USA before and I and my wife are canadian citizens.