Unprecedented wave of attacks: The U.S. electric grid has become increasingly vulnerable to what the federal government is describing as an unprecedented wave of attacks that threatens to cripple the nation, according to a new investigative report that warns the energy industry is lagging in efforts to boost physical security of these critical sites. READ MORE

CYBER SECURITY

Time to shore up Atlanta’s digital defenses: The City of Atlanta’s 8,000 employees got the word on Tuesday that they had been waiting for: It was O.K. to turn their computers on. But as the city government’s desktops, hard drives and printers flickered back to life for the first time in five days, residents still could not pay their traffic tickets or water bills online, or report potholes or graffiti on a city website. Travelers at the world’s busiest airport still could not use the free Wi-Fi. READ MORE

TERRORISM

English schools on lockdown today: Schools across England were put on lockdown amid a major safety alert after an email threated that children would be “run down and shot.” The wording of the email is believed to have said that at 3.15 pm a car would drive into as many students as possible as they tried to leave. The email added that a gunman would shoot any students if the school tried to evacuate them. READ MORE

Poisoned at front door: Detectives investigating the attempted murders of Russian double agent Sergei Skripal and his daughter Yulia Skripal have said they believe the pair were poisoned with a nerve agent at the front door of his Salisbury home. Specialists investigating the poisoning of the the Skripals, who reportedly have a slim chance of survival, have found the highest concentration of the nerve agent on the front door of the address, police said. READ MORE

ANIMAL FEED SAFETY

More than 300 sick or dead pets: The producer of Darwin’s brand raw pet foods knew about Salmonella in its plant, fielded more than 300 consumer complaints about sick or dead pets, and racked up a laundry list of food safety violations in 2017, according to government inspectors. READ MORE

PUBLIC HEALTH

Yucky ducky: Scientists now have the dirt on the rubber ducky: Those cute yellow bath-time toys are — as some parents have long suspected — a haven for nasty bugs. Swiss and American researchers counted the microbes swimming inside the toys and say the murky liquid released when ducks were squeezed contained “potentially pathogenic bacteria” in four out of the five toys studied. READ MORE

A cancer vaccine? A recent Stanford cancer study that cured 97 percent of mice from tumors has now moved on to soliciting human volunteers for a new cutting-edge medical trial. The trial is part of a gathering wave of research into immunotherapy, a type of treatment that fights cancer by using the body’s immune system to attack tumors. READ MORE