Sign up for our daily briefing

Make your busy days simpler with Axios AM/PM. Catch up on what's new and why it matters in just 5 minutes.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Catch up on the day's biggest business stories

Subscribe to Axios Closer for insights into the day’s business news and trends and why they matter

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Stay on top of the latest market trends

Subscribe to Axios Markets for the latest market trends and economic insights. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Sports news worthy of your time

Binge on the stats and stories that drive the sports world with Axios Sports. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Tech news worthy of your time

Get our smart take on technology from the Valley and D.C. with Axios Login. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Get the inside stories

Get an insider's guide to the new White House with Axios Sneak Peek. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Catch up on coronavirus stories and special reports, curated by Mike Allen everyday

Catch up on coronavirus stories and special reports, curated by Mike Allen everyday

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Denver news?

Get a daily digest of the most important stories affecting your hometown with Axios Denver

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Des Moines news?

Get a daily digest of the most important stories affecting your hometown with Axios Des Moines

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Twin Cities news?

Get a daily digest of the most important stories affecting your hometown with Axios Twin Cities

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Tampa Bay news?

Get a daily digest of the most important stories affecting your hometown with Axios Tampa Bay

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Charlotte news?

Get a daily digest of the most important stories affecting your hometown with Axios Charlotte

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Nashville news?

Get a daily digest of the most important stories affecting your hometown with the Axios Nashville newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Columbus news?

Get a daily digest of the most important stories affecting your hometown with the Axios Columbus newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Dallas news?

Get a daily digest of the most important stories affecting your hometown with the Axios Dallas newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Sign up for Axios NW Arkansas

Stay up-to-date on the most important and interesting stories affecting NW Arkansas, authored by local reporters

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

People light candles for the victims Westgate shopping mall attack in Sept. 2013 in Nairobi, Kenya. Photo: Uriel Sinai/Getty Images

A new study details a theoretical model that can help predict where terrorism attacks will occur up to a week in advance.

Why it matters: Much of the power of a terror attack derives from the quality of surprise. Being able to reliably predict when and where attacks are likely to occur would potentially blunt terror as a tool and reduce the costs of security.

What's happening: In a study published Friday in Science Advances, researchers outlined a framework that uses publicly available data about terror incidents around the world between 2002 and 2016 to identify which factors might reliably tip off authorities in advance of a likely attack.

  • The locations of previous attacks had the best predictive value — if terrorists thought a location was worth attacking once, there's a higher chance it'll be worth attacking again.
  • In addition, population density, the travel time to the nearest city, road network density, and economic activity (in part as quantified in night lighting that can be seen via satellite) all correspond to higher likelihood of attack.

By the numbers: In regions with a high prevalence of terrorism, the model was capable of predicting up to 51% of attacks a week in advance.

The catch: For areas with a low prevalence of terrorism — like the U.S., for example — the model is much less capable of predicting attacks in advance, simply because there is so little data to draw from.

Go deeper

Bryan Walsh, author of Future
2 hours ago - Politics & Policy

Axios AM Deep Dive: America’s murder surge

Photo illustration: Sarah Grillo/Axios. Photo: Erik McGregor/LightRocket via Getty Images

Homicides rose at the fastest rate in at least six decades last year. This Axios AM Deep Dive, led by Future correspondent Bryan Walsh, looks at the state of gun crime.

6 hours ago - Politics & Policy

Senate Democrats target billionaires

Illustration: Annelise Capossela/Axios

After failing to get a deal on other planned tax increases, key Senate Democrats are pivoting to a billionaires' income tax to pay for President Biden's social spending.

The big picture: No advanced economy has attempted anything similar on such a scale.

Anti-abortion activists' Supreme Court dreams are coming true

Photo illustration: Annelise Capossela. Photos: Kevin Dietsch/Getty Images

This is the moment the conservative legal movement has been building toward for decades: The solidly conservative Supreme Court is about to hear two major abortion cases within a month of each other.

Why it matters: All of this is likely to end with significant new restrictions on abortion and a clear path for Republican-led states to win the next big abortion cases, too — the culmination of a long and bitter fight for control of the judiciary.