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

    Unrest follows no-confidence vote in French government

    00:43
  • Huge fire destroys church in New Jersey

    00:35
  • Surveillance video shows Irvo Otieno's final moments

    01:12
  • Operation Iraqi Freedom: 20 years later

    03:04
  • L.A. schools close over employee strike

    00:22
  • Macron survives no-confidence vote making new French pension plan law

    02:34
  • New Miami Beach curfew voted down as city faces spring break violence

    03:37
  • Oklahoma police captain asks officer to turn off bodycam during DUI arrest

    02:20
  • Nightly News Full Broadcast (March 20th)

    20:51
  • Life in Iraq 20 years after U.S. invasion

    02:47
  • Girl Scout Troop 6000 gives one-of-a-kind sisterhood to girls in NYC shelter system

    01:39
  • Flight attendants push for renewed infant seat policy

    01:32
  • Buster Murdaugh speaks out over high school classmate’s death

    01:48
  • Elementary teacher shot by six-year-old student speaks out about challenges faced

    01:50
  • Chinese President Xi visits Russia, calls Putin ‘dear friend’

    02:06
  • Trump predicts he’ll be arrested, calls for protests

    02:25
  • CDC warns of spike in U.S. cases of deadly fungal infection

    02:42
  • Costello blasts Cohen as a liar after testifying in hush money investigation

    07:17
  • Community shaken after student killed in shooting at Texas high school

    01:44
  • U.S. aid worker and French journalist freed after being held hostage for years

    01:24

Solar Storms and the Electric Grid

02:30

As a country that relies almost entirely on electricity, the United States faces a tremendous challenge when it comes to protecting the national power grid. NBC's Kevin Hannigan explains, one of the biggest threats to our way of life is over 90 million miles away.