Totally responsible, we can no longer just give the press a free pass to print what ever they want. They must be prosecuted for misinformation and pointlessly inciting panic. It is no different then screaming fire in a movie theater.
No, you have it backwards. In an environment like this, you err on the side of caution. You don't have perfect information. You never will. If you wait for perfect information before taking action, you will be so far behind the curve you will never recover. You prepare for the worst case, and if you're wrong, then great!!!.
You certainly don't hide information just because you don't have 100% confidence it's a fact.
Censureship had a lot to do with how this mess got out of control in the first place.