Start your week smart: US Intel leak, Gaza, Dock collapse, Mississippi shooting, Boeing

CNN’s 5 Things brings you all the news you need to start your week smart.

You’ve probably heard a lot of talk this campaign season about how putting hefty tariffs on goods made overseas will revive America’s manufacturing sector. Trouble is, that is not how tariffs work. The fact of the matter is that tariffs are a tax on Americans. Here’s what else you need to know to Start Your Week Smart. • The US is investigating a leak of highly classified US intelligence about Israel’s plans for retaliation against Iran, according to three people familiar with the matter. One of the people familiar confirmed the documents’ authenticity. The documents, dated October 15 and 16, began circulating online Friday after being posted on Telegram by an account called “Middle East Spectator.”• At least 87 people were killed in an Israeli strike overnight Saturday on Beit Lahia in northern Gaza, the enclave’s health ministry said. The number killed includes 27 bodies retrieved so far and 60 people under the rubble. More than 40 people had been injured, including a number of very critical cases, the ministry said. CNN cannot confirm the figures but they match numbers provided by Kamal Adwan Hospital, where victims have been taken.• Authorities are working to identify the cause of a partial ferry dock collapse on Georgia’s Sapelo Island that turned a day of celebration into tragedy, leaving at least seven dead and six critically injured as crowds gathered for a cultural festival on Saturday. The collapse happened as crowds gathered on the island for a celebration of its tiny Gullah-Geechee community of Black slave descendants.• Three people were killed and eight others injured by gunfire in Mississippi at a party to celebrate a school’s football victory early Saturday, according to the local sheriff. There have been at least 422 mass shootings this year in the US, according to the Gun Violence Archive, which, like CNN, defines a mass shooting as one that injures or kills four or more people, not including the shooter.• A tentative deal has been reached to end the five-week-long strike at troubled aircraft maker Boeing, the union announced to its 33,000 striking members early Saturday. The deal still needs to be ratified by a majority of the rank-and-file membership of the International Association of Machinists before it can take effect and workers can return to work. The union will hold the vote on Wednesday. MondayLook up in the sky after midnight and you might catch a glimpse of the Orionid meteor showers. The Orionid meteors come from one of the most famous comets, Halley, which is currently near the middle of its 76-year orbit around the sun. While the comet won’t make its appearance in Earth’s night sky until 2061, it leaves a trail of debris behind that our planet passes through every year, resulting in the Orionids. TuesdayRussian President Vladimir Putin will host the 16th BRICS summit in Kazan, Russia. The name for the group of leading emerging economies comes from its original member nations — Brazil, Russia, India, China and South Africa — and its mission is to act as a counterweight to the West and Western institutions like the G7. Additional BRICS members have been added over time, including Egypt, Ethiopia, Iran, Saudi Arabia and the United Arab Emirates. Tuesday also marks two weeks until Election Day in the US.