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Buried landmines can now be detected using bacteria engineered to sense explosive vapors, according to a new study in Nature Biotechnology.

Why it matters: There were more than 6,000 landmine-related casualties recorded in 2015. One of the biggest challenges in clearing landmines is finding them. Bacteria — along with plants and animals — have been proposed for detecting undetonated devices before, but this is the first demonstration of how bacterial sensors might work in the field.

How it works: Explosive vapors seep out of buried landmines and build up in the soil above them. Researchers genetically engineered bacteria that emit a fluorescent signal when they come into contact with vapors from the devices. They scattered the bacteria across a test field and then detected those that glowed with a laser. They searched for 18 landmine targets and only failed to detect four of them.

What's next: The researchers envision outfitting drones with the laser scanners, which would require a more compact design. They also caution they need to address how the bacteria can be removed after use and how to scale the technique so they can scan larger land areas.

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Updated 25 mins ago - World

Scoop: Decisive meeting could lead to Israeli-Sudanese normalization

Lt. Gen. Abdel Fattah al-Burhan, Sudan's head of the Sovereign Council, meets with Bahraini aid officials in Khartoum, Sept. 15. Photo: Mazen Mahdi/AFP via Getty Images

U.S., Emirati and Sudanese officials will hold a decisive meeting in Abu Dhabi on Monday on a possible normalization agreement between Sudan and Israel, Sudanese sources told me.

Why it matters: If the U.S. and the United Arab Emirates accommodate Sudan’s requests for economic aid, an announcement on a normalization agreement with Israel similar to the ones struck with the UAE and Bahrain could be made within days, sources briefed on the process tell me.

Updated 2 hours ago - Politics & Policy

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Illustration: Sarah Grillo/Axios

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Updated 2 hours ago - Health

7 states set single-day coronavirus case records last week

Data: Compiled by Axios; Map: Danielle Alberti/Axios

Seven states set new highs last week for coronavirus infections recorded in a single day, according to the COVID Tracking Project and state health departments. Wisconsin and Nebraska surpassed records set the previous week.

Why it matters: Problem spots are sticking in the Midwest, although the U.S. is moving in the right direction overall after massive infection spikes this summer.