These are the headlines you Need2Know:
* **Trump Threatens Iran on Twitter:**
President Trump lashed out against Iranian President Hassan Rouhani late Sunday, warning him -- in an all-caps [tweet](https://twitter.com/realDonaldTrump/status/1021234525626609666) -- to "never, ever threaten the United States again or you will suffer the consequences the likes of which few throughout history have ever suffered before." His tweet comes in response to Rouhani's warning to Trump that "war with Iran is the mother of all wars." Read the details on [NPR.](https://www.npr.org/2018/07/23/631454795/trump-to-irans-president-never-ever-threaten-the-u-s-again)
* **Deadly Shooting in Toronto:**
Two people died and a dozen others were wounded in Toronto after a shooter opened fire in a popular neighborhood late Sunday. Neither of the victims has been identified. Authorities say the gunman is also dead, and they are now investigating the motive behind the shooting. Read the latest on [CNN.](https://www.cnn.com/2018/07/22/americas/toronto-restaurant-shooting/index.html)
* **Mourning Boat Accident Victims:**
The 17 victims of the duck boat accident in Missouri were remembered in a service on Sunday near the site of the accident. The memorial came as federal investigators are examining the boat's black box and video footage. Read more at [CBS News.](https://www.cbsnews.com/news/branson-community-mourns-missouri-duck-boat-victims-today-2018-07-22/)
* **Italian Wins the British Open:**
Francesco Molinari claimed the Claret Jug on Sunday, becoming the first Italian to win a major. He outlasted Tiger Woods, Jordan Spieth, Rory McIlroy and others to secure the prize. Read more at [BBC.](https://www.bbc.com/sport/golf/44918313)
Cheddar's Hope King gets into the latest.
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Australia says it will fight against plans to downgrade the Great Barrier Reef’s World Heritage status due to climate change, while environmentalists are applauding the U.N. World Heritage Committee’s proposal.
he Supreme Court has decided unanimously that the NCAA cannot enforce rules limiting education-related benefits that colleges offer to student athletes — things like computers and paid internships.
A sharply limited number of fans will be allowed to attend the Tokyo Olympics. The decision announced Monday comes as organizers try to save some of the spirit of the Games where even cheering has been banned.
The Supreme Court has dismissed a challenge to the Obama era health care law, preserving insurance coverage for millions of Americans.
The Supreme Court has ruled that the city of Philadelphia violated the Constitution by limiting its relationship with a Catholic foster care agency over that group's refusal to certify same-sex couples as foster parents.
President Joe Biden has signed legislation Thursday establishing a new federal holiday commemorating the end of slavery, saying he believes it will go down as one of the greatest honors he has as president.
The number of Americans applying for unemployment benefits rose last week for the first time since April despite widespread evidence that the economy and the job market are rebounding steadily from the pandemic recession.
How much do you think cops make? A few hundred thousand per year? It sounds extreme, but this is the case in many cities across the country thanks to a slew of financial perks in ironclad union contracts.
The Federal Reserve is holding steady on the dovish policy stance that it's maintained since the beginning of the pandemic but not without a hat-tip to those worried about rising inflation.
Just 40 years ago, New York City's Times Square was a very different place: crime-ridden and adult theaters as the main source of entertainment. Cheddar explains how it went from this to one of the top tourist attractions in the world.
