In article .com,
Savageduck wrote:

It's amazing what a tripod, or a bean bag, or even brazing the lens
against a tree can do for sharpness.

it's even more amazing what optical stabilization can do, thereby
eliminating the need to carry a tripod or a bean bag, which may be
prohibited in many situations, such as museums, public streets and
parks, theaters and tsa checkpoints.

Strangely enough TSA seems to have a reasonable tolerance for tripods which
can travel as a carry-on, or in checked bags,

technically true, however, the final say is up to the tsa clerk at the
checkpoint who can (and does) make up rules on the fly, so if he
decides it's 'dangerous' (i.e., he wants a free tripod), you will be
required to 'voluntarily surrender' it.