*sigh*

Airlines and charter operators must abide by strict security (and operational) requirements because they are for-hire, common carriage air carriers. They serve the public, and in the interest of public safety, they are more tightly regulated. This is what you face when your business model is providing airborne transportation for anybody willing to pay for a ticket to ride along.

On the other hand, business aviation is private, non-public, and non-common carriage. There is no need for these part 91 operators to have the same security and operational requirements in the interest of public safety as airlines and charter companies have because, by its nature, bizav is a PRIVATE operation. Nobody gets on the aircraft without the consent of the aircraft owner and the PIC knowing who you are and what your business onboard is - and in reality, that's real security, not running a name through a corruptible database and taking away your toothpaste.

As a former 121 pilot, I can tell you beyond a shadow of a doubt my Citation is FAR more 'secure' than your E190, or any other airliner where passengers and pilots are screened by TSA but anybody with a misdemeanor conviction can get a SIDA badge and access your aircraft without screening.