The threat of a Russian invasion of Ukraine still looms with officials saying it could happen within several days. Secretary of State Antony Blinken, appearing at the United Nations, laid out what a Russian invasion could look like saying that missiles and bombs could drop across Ukraine, communications would be jammed, and cyber-attacks could shut down key institutions. Officials said that Russia could be trying to set up a pretext such as a violent event that would justify an invasion. Nahal Toosi, senior foreign affairs correspondent at Politico, joins us for more.

Next, gunshot detection devices that are used in cities across the U.S. are getting criticism for their high cost and whether they are effective at reducing crime. One such company is called ShotSpotter who has contracts with about 120 police agencies who pay $65,000 to $90,000 a year for each square mile of service. The other angle to this is that ShotSpotter helps police departments apply for federal grants so they can afford the technology. Jon Schuppe, reporter at NBC News Digital, joins us for how ShotSpotter is winning police contracts and fighting criticism.

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