virgin to an extent were the architects of the screening debacle that now exists. Go back a few years to when it was only Jet aircraft that required screening. Virgin cried foul as their E jets were carrying fewer pax than the Q400.
The regulator was forced to re visit the legislation and introduced the 20000kg MTOW trigger. Skywest got tangled up in the mess being just under a tonne over. There was much talk at the time about them having their aircraft re certified for a lower MTOW. The fact that they didn't follow through is evidence perhaps that the exercise would not have been as simple as what has been suggested above.