Why did Dana cancel her book signing when she did?

Second Amendment advocate gave short notice requesting security, canceling event

I have a few questions after reading this story.  First, when was this book signing arranged?  When did Dana learn there wouldn't be any security?  And ultimately, why did it play out the way it did?

The first question is important, because it shows how much time they had to plan this event.  To wait until the last minute to make a decision on security, especially with the book signing event with an issue happening a full 10 days previous that would cause security concerns, is shoddy management at best.

The second question is important, because it is the difference between incompetence, and stupidity. It was just incompetence to not know the security arrangements until the last minute.  It's just plain stupid to know the security issue, and wait to the last minute to fill it.  And since we know Dana isn't stupid, that makes her incompetent, or possibly something else.

Dana has had six book signings scheduled to this point.  There was the Books-A-Million signing on the 23rd, a group book signing on the 25th (no location given), Georgia Tech on the 29th, and Orlando on the 30th.  Then the TCU cancellation/postponement, and a signing scheduled for Saturday in St. Louis.  There are no others on her calendar at this point going through February.

Surprisingly, there is nothing about the attack at the Books-A-Million event from Dana on Twitter:

Also nothing on Facebook.  Nothing on the news.  Nothing.  That is very suspicious to me.

Most troubling, however, is how Dana wishes to tout the fact that she needs security because she's had threats, and she brings her children to these signings.  There is no logic to this.  Either it is safe enough for your kids to be there, or it is dangerous and they should not be there.  

Truthfully, my opinion stands.  This was a publicity stunt.  The lateness on her request for security, the extreme lateness of the cancellation.  The lack of book signings since the release of the book, and the lack of news on these signings, not even a local peep.  If this was not Dana using her book to push carry on campuses, I would be shocked.  Point blank, how can you see this evidence and think any differently?