Marijuana is seen on a dashboard while a state trooper talks with someone outside.

Why Doesn't A Test To Check For Marijuana Impairment Exist?

Though toxicology reports can show THC in a driver's system, no test exists to check if its levels are affecting their ability to drive.

Latest in Tech

0:28Tesla and SpaceX CEO Elon Musk
Matt Rourke / AP

Elon Musk Says Twitter Acquisition Is 'Temporarily On Hold'

4:09The Facebook app logo
Jenny Kane / AP

Why We Can't Escape Social Media

1:32Apple iPod Touch

Apple Discontinues Last iPod Model 20 Years Later

0:34Tesla and SpaceX CEO Elon Musk
Susan Walsh / AP

Musk Says He Would Reverse Twitter's Ban Of Former President Trump

2:54The Nextdoor logo
Jeff Chiu / AP

How Did Nextdoor Get So Popular?

2:58Two cars sit at a charging station.

Are High Gas Prices Pushing People To Electric Vehicles?

0:23President Joe Biden
Andrew Harnik / AP

White House Says Internet Providers To Discount Fee For Poor

4:10Twitter's app icon is shown.

Black Twitter Community Questions What Elon Musk Takeover Will Change

0:26A person holding a cellphone.
Jenny Kane / AP

Mental Health Apps Are Sharing Your Personal Data

8:54The image asks who gets paid from streamed songs.

Pop Quiz: Who Makes Money When You Stream A Song Online?

5:23Energy company Colonial Pipeline
Chris Carlson / AP

What Makes The U.S. Vulnerable To Cyberattacks?

2:51A person checks ad settings on their Facebook account.

Social Media Has Become Saturated With Ads. How Did We Get Here?

6:15A Calm add says "Do nothing for 15 seconds."

How Meditation Apps Became A Billion-Dollar Industry

0:42Tesla company logo
David Zalubowski / AP

Musk Sells $4B In Tesla Shares, Presumably For Twitter Deal

2:52A remote shows streaming options.

What's Next For Netflix, Streaming After Subscription Drop?

0:29Twitter logo
Gregory Bull / AP

Twitter Sees Profit, Revenue And User Growth Ahead Of Musk Takeover

4:02Twitter app logo
Gregory Bull / AP

The Future Of Content Moderation As Musk Takes Twitter Private

4:46Tesla and SpaceX CEO Elon Musk
Hannibal Hanschke / AP

Elon Musk Has An Agreement To Acquire Twitter For About $44B

0:25Tesla and SpaceX CEO Elon Musk
John Raoux / AP

Reports: Twitter Nears Deal To Sell Platform To Elon Musk

3:33A Ukrainian soldier
Efrem Lukatsky / AP

Drone Technology Gives Edge To Ukrainian Forces Fighting Russia

4:20Tourists look upon Niagara Falls
Paul Sakuma / AP

How Niagara Falls Is Cleaning Up The Cryptocurrency Mining Industry

Logo for CNN+
CNN+ via AP

CNN's Streaming Service Shutting Down Just One Month After Launch

Tesla and SpaceX CEO Elon Musk
Susan Walsh / AP

Elon Musk Says He's Secured $46.5B In Financing To Buy Twitter

4:20Tesla and SpaceX CEO Elon Musk
Susan Walsh / AP

Twitter Adopts 'Poison Pill' Defense In Response To Musk Takeover Bid

2:06A hologram of Whitney Houston performs on stage.
Base Hologram / "An Evening With Whitney"

Are Posthumous Performances, Albums Innovative Or Just Plain Strange?

1:50Tesla and SpaceX CEO Elon Musk
Hannibal Hanschke / Pool Photo via AP

Tesla CEO Elon Musk Offers To Buy Twitter For $43B

2:38A woman wears a virtual reality headset
Mark Schiefelbein / AP

How Did We Get Metaverse Real Estate?

2:52Seattle Mariners catcher Tom Murphy wears a wrist-mounted device used to call pitches as he catches a ball
Charlie Riedel / AP

MLB To Allow Technology To Combat Sign Stealing During Regular Season

0:29Elon Musk
John Raoux / AP

Elon Musk Accused Of Breaking Law While Buying Twitter Stock

3:00Technicians try to fix the internet in Bucha.
Rodrigo Abd / AP

Why Russia Has Struggled In Its Information War In Ukraine