After a Muni train crashed into another train at the West Portal station, boo-booing 47 people, and two F-Markets streetcars brutally sandwiched a sport-utility vehicle, injuring six people, Supervisor (and possible mayoral candidate) Bevan Dufty has called for a "hearing before the City Operations and Neighborhood Services Committee to discuss Muni safety procedures that would prevent such crashes." The meeting will happen today. Lots of brows will be furrowed, blame will be placed, hands will be wrung. Not to be outdone, Supervisor Sean Elsbernd called for "a second hearing before the committee on the San Francisco Municipal Transportation Agency's safety standards, including medical screening procedures for bus and light-rail operators."