That's a very common argument. What you're saying is: we know better what's good for you, so we'll decide what you know and what you do.
The Soviets were using it all the time and I give you a good example. When Chernobyl blew up, they did not evacuate Pripyat and did not warn the world abut the disaster. They did not want people to panic, because they knew better what's good for them and for the Soviet Union.
They did the same exact thing when submarine Kursk went down. It was possible to save the sailors, but keeping everything a secret was more important at first. Would you like such people to decide for you? Would you want your child to die because the government doesn't want you to panic, or wants to keep being seen as a superpower where accidents don't happen?