On "Special Report" tonight, Charles Krauthammer reacted to the killings of four law enforcement officers over the past nine days.

Krauthammer said that officers across the country feel like President Obama and the federal government don't have their backs.

He pointed out that Obama's first instinct in any incident with race involved - from Trayvon Martin to Michael Brown - has been to side against against the authorities and express his sympathies.

"That's a message that the police have received," Krauthammer stated, adding that has led to a "slow-motion police strike," in which officers are pulling away from dangerous areas and situations.

He said that's because police now have to think about how their actions will look on video and how they will ultimately be treated by the legal system.

"Once you have to add that factor, the policeman is defenseless," Krauthammer said.

Watch more from the "Special Report" panel above.

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