This is thought provoking!
You'll have to follow me here, but your questions at the end of the article, "What kind of a world are we going to live in? A world full of misinformation where trust is hard to find?" - the fact that you may only have recently started to consider and ask these questions seems to be a strong indication that many have already been so hopelessly mislead by the mass media, for so long, and it has been done so decietfully well...
I think it means that a whole lot of people are already screwed.
History books (and other media) have been changed in so many ways, so many times, that it's increasingly difficult for anyone to actually "know" what they think it is they know. I have absolutely no doubts whatsoever that all of us are the victims of at least some misinformation put out by governments, intelligence agencies, media outlets, and even religion.
As far as the lady at the end goes, talking about how this new fake video technology is simply a "tool" that can be used for good or ill... Just take a look at Oppenheimer, who invented the nuclear bomb from medical experiments begun by the Curies' regarding medical X-Ray technology. Leave it to the goverment and big corporations to take any new technology they can get their hands on - and then develop it into a weapon that they can sell for a profit.
The problems with tools and technology are the same as they have always been, and that is the fact that humans have a long track record of making stupid choices. Take Artificial Intelligence: it certainly will have the ability to do many things better than humans can. And, some humans, at some point in the future, are going to make the stupid decision to give up too much control to reliance on an AI. In fact, a strong argument could have been made a long time ago that our methods are already overly reliant on technology.
The real question everyone needs to be asking themselves is this: What will you do when technology fails?
Call the IT guy and wait for him to fix it? Try to learn how to fix everything yourself? Go back to old ways of doing things? Theres a lot to be said for self-reliance - but there's so many complex things out there to know that most people can't know enough to save themselves. At that point, communities of skilled people will have to really work well, and work hard - together - to get the human race through perilous times.