remember this when the "kill pigs" chants start

https://thehill.com/blogs/blog-briefing-room/news/242501-obama-signs-bill-creating-national-police-protection-alert

President Obama on Tuesday signed a bill that would create a national alert system to help authorities find people who kill, injure or make imminent threats against police.

The bipartisan measure is named after Wenjian Liu and Rafael Ramos, two New York Police Department officers who were shot and killed in their squad car in December.

"It's important for us not only to honor their memory, it's also important for us to make sure that we do everything we can to help ensure the safety of our police officers when they're in the line of duty,” Obama said while flanked by family members of Liu and Ramos at an Oval Office signing ceremony.

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The president said the new law would alert police to active and credible threats and ensure that “appropriate checks can be taken as quickly as possible."

Vice President Biden and several sponsors of the bill, Sen. Ben Cardin (D-Md.) and Reps. Bill Pascrell (D-N.J.) and Dave Reichert (R-Wash.), also attended the signing.