Bomb Threat

If there is one thing that we learn over and over from the Torah, it is this:

Even our greatest leaders, are not immune to mistakes.

Throughout the Torah our most respected leaders, all the way up to Moshe Rabainu, make mistakes and they are not glossed over.
They are highlighted so that we can learn from them.

Changing the subject:

Imagine there was a bomb threat in your child's school.  

  The police are called but no one will cooperate with the investigation.  

No bomb experts, or impartial investigators are allowed into the school.

Why?

Because the local trusted rabbonim have already investigated, have consulted their own expert, and insist the school is safe.
The case is dropped for lack of sufficient evidence.

The threat is not traced back to the source. 

There are ticking sounds coming from the walls of the school, but most ignore it.  

Those who ignore it, believe that this is the definition of daas Torah, and their rabbonim must be trusted.

...Other people remind them what has been demonstrated over and over again.

Although they have the best of intentions, rabbonim simply can not detect bombs, and often local "experts" have a conflict of interest.