The phenomenon of synchronized fireflies has only been spotted in a few geographical areas Source

“CBS This Morning” co-host Tony Dokoupil joins CBSN to talk about his interview with Juul Labs CEO Kevin Burns. Burns says vaping isn’t for kids but argues that Juul contributes to to decline of U.S. smoking rates. Source

Federal health officials say the rise in potency of marijuana in the past few decades and different forms of consumption have contributed to higher risks, especially for young people and those who are pregnant. Source

A high school senior from Louisiana surprises his 12-year-old brother in silly costumes when he gets off the school bus every day. The costumes may be embarrassing for his little bro, but he’s building memories before he leaves for college next year. Source

The U.S. is delaying the release of its long-awaited Middle East peace plan until after Israel’s election. CBS News State Department and foreign affairs reporter Christina Ruffini joins CBSN to discuss the latest developments plus new insight into the Afghan peace talks. Source

Juul Labs CEO Kevin Burns acknowledges we don’t yet know the long-term effects of vaping. Dr. Tara Narula has tips for parents who may be concerned for their kids Source

Millions of civilians in Syria are trapped as the regime tightens its grip on the last rebel stronghold. Syrian and Russian troops are bombing Idlib, trying to reclaim the opposition hot-spot. CBS News foreign correspondent Holly Williams got rare access to the war-torn city. She joins CBSN from the Syrian-Turkish border to explain the latest developments. Source

“I want to be very clear — no amount of marijuana use during pregnancy or adolescence is known to be safe,” Surgeon General Jerome Adams warned Source

The Justice Department’s Office of the Inspector General found that James Comey did violate policy by taking home memos Source

Hurricane Dorian is barreling towards the U.S. and expected to hit Florida Sunday or Monday. FEMA’s Acting Administrator Peter Gaynor joined CBSN AM to discuss emergency preparedness and whether the Trump administration diverting funding for border spending could impact hurricane recovery. Source