IE 11 is not supported. For an optimal experience visit our site on another browser.
  • UP NEXT

    Why there is a fixation with the trending #RushTok

    03:59
  • Celebrities criticized for private jet CO2 emissions 

    07:28
  • Former VP Cheney slams Trump in new endorsement ad 

    02:59
  • Ten killed in Pennsylvania house fire

    00:19
  • Fiery Los Angeles car crash kills five, injures seven

    01:57
  • Alex Jones ordered to pay $45.2 million in punitive damages in defamation trial

    08:52
  • Fla. State Attorney suspended for saying he won't enforce restrictions on abortion says it's about DeSantis' 'political aspirations'

    06:18
  • ‘We’ll likely see a new status quo moving forward:’ China retaliates after Pelosi’s Taiwan visit

    08:16
  • Sen. Dick Durbin on revised climate and tax deal : 'I think it’s a good compromise'

    08:47
  • The future of touch and smell in virtual worlds

    04:12
  • What’s going on with the ‘weird’ economy? Chuck Todd explains

    03:06
  • New York state Senator John Liu speaks out after racist voicemail

    05:08
  • Country singer Chris Stapleton returns home to Kentucky to help deadly flooding recovery

    03:32
  • Outrage grows over some coffee shops' non-dairy milk surcharges

    03:38
  • How the Inflation Reduction Act could impact the fight against climate control

    03:02
  • U.S. economy added 528,000 jobs in July, unemployment rate at 3.5%

    02:03
  • Admiral Linda Fagan’s journey to becoming the Coast Guard’s first female commandant

    05:26
  • Sen. Sinema pledges support for Democrats’ tax and climate bill

    04:53
  • Russia ready to discuss Brittney Griner prisoner swap, Moscow says

    06:14
  • DOJ charges four Louisville officers for violating Breonna Taylor's civil rights

    05:07

Can dogs be trained to sniff out Covid?

03:35

A French study has found that dogs can effectively detect Coronavirus in public spaces, with some parts of the U.S. already using dogs to sniff out possible Covid cases at public events. NBC News’ Ellison Barber explains how dogs are trained to sniff out the virus and what happens when they find someone who may be positive for Covid-19.