Capitol Shooting Raises Questions About When Police Should Use Force

I believe "When they feel like it" has been the answer these days.

When someone tries to ram through barriers at two of the nation's most highly protected facilities, do officers shoot? What if the driver's car is carrying a powerful bomb? Or what if the driver is unarmed and has a child?

Details about Thursday's chaotic shooting were scant as an investigation was only just getting underway; officials said a woman drove up against a barricade at the White House and then sped toward Capitol Hill with a 1-year-old child in her car before she was apparently shot to death.

Officials wouldn't publicly confirm whether she was armed, but video taken of part of the incident showed a driver swerving away from several police officers with their guns drawn and then making a frighteningly fast getaway.