Those are all very pertinent questions, and I'm happy to answer them.
Yes, one should definitely be concerned about the risk of Canadian citizens being abducted in third countries, and also having their citizenship denied and potentially changed, as in the case of my father. What happened to my father sets a very worrying precedent which, to my knowledge, we haven't seen repeated yet, but it's imperative that nations, such as Canada and other like-minded nations, speak up in public, and very clearly delineate that this is not something that we accept. These nations must also formulate very clear consequences if this were to happen again.
Mr. Law made some really good points as to what specific measures could be taken. Something that one could do in the short term to protect Canadian citizens, who may be planning to travel to an area where there is significant Chinese influence—something like this might happen in Thailand, as in the case of my father—is to make sure that Chinese technology is not adopted beyond the point that it already has been in Canada.
As we're all aware, it has been known to spy on people, and especially people in vulnerable positions. I am pretty sure, for example, that one of the reasons my father was abducted in the way he was was that Chinese authorities were able to keep track of his habits, movements and plans.