United Pilot Criticizes SFO ATC for Go Arounds.

A United Airlines pilot expressed frustration with air traffic controllers after having to perform two go arounds due to lack of spacing at San Francisco Airport. The pilot called out the tower controller and later spoke with NorCal departure and approach controllers, who were in agreement with the pilot. The go arounds were caused by an aircraft being cleared to taxi onto the runway for takeoff, but there wasn't enough separation. The incident resulted in a roughly 30 minute delay for the United flight.