U.S. Ambassador Nikki Haley to U.N.: 'Enough is enough'

North Korea is "begging for war," and the United Nations must exhaust all diplomatic means to halt the expansion of Pyongyang's nuclear program before it's too late, U.S. Ambassador Nikki Haley said at an emergency meeting of the Security Council on Monday, one day after Pyongyang conducted its sixth and by far most powerful nuclear test. "Enough is enough," Haley said. The test drew an angry response from the Trump administration, and Defense Secretary Jim Mattis warned of a "massive military response" against North Korea. In a series of tweets, President Trump threatened to halt all trade with countries doing business with the North, a veiled warning to China, who called Trump's threat "unacceptable." South Korea responded to Sunday's nuclear test by firing missiles into the sea Monday in a simulation of an attack on North Korea's primary nuclear sites.

Trump to end DACA, give Congress six months to act

After months of uncertainty, President Trump will announce on Tuesday that he is ending a controversial program that protects nearly 800,000 young undocumented immigrants from deportation, media reports indicated late Sunday. Politico and Reuters, citing unnamed sources, reported that Trump had decided to end the Deferred Action for Childhood Arrivals Program, known as DACA, which Trump inherited from President Obama. Ending DACA would fulfill a campaign promise that is sure to please Trump's supporters but terrify DREAMers — immigrants illegally brought to the United States as children — whose lives will be upended. 

It's official: Royal baby number three is on the way for William and Kate

Prince George and Princess Charlotte are getting a younger sibling. In a surprise announcement, Kensington Palace revealed on Monday that Prince William and Duchess Kate were expecting their third child. As with her other two pregnancies, the Duchess is suffering from Hyperemesis Gravidarum, a form of severe morning sickness, and was forced to cancel her engagements Monday.

Now all eyes on Hurricane Irma

While it's still too early to predict an exact track for Hurricane Irma, forecasters have a message for residents of the East and Gulf coasts: Start preparing now. Hurricane warnings were issued Monday for portions of the Leeward Islands, while a hurricane watch is in effect for Puerto Rico and the Virgin Islands. Irma is currently a Category 3 storm but could hit Category 4 — Harvey level — by midafternoon Monday, according to AccuWeather meteorologist Dave Samuhel. 

Steely Dan co-founder Walter Becker dies at 67

A rock and roll fan with a penchant for harmony and obtuse references, Walter Becker, the guitarist, bassist and co-founder of the 1970s rock group Steely Dan, which sold more than 40 million albums and produced such hit singles as Reelin' In the Years, Rikki Don't Lose that Number and Deacon Blues died Sunday. He was 67. His official website announced his death with no further details. Donald Fagen said in a statement Sunday that his Steely Dan bandmate was not only "an excellent guitarist and a great songwriter" but also "smart as a whip," ''hysterically funny" and "cynical about human nature, including his own."

College football season has arrived

There was plenty of action during the first full weekend of the college football season. Beyond the usual high-scoring blowouts, there was a wild comeback by Josh Rosen and UCLA on Sunday night and a historic upset by Howard over UNLV. Maryland also pulled off a stunner in Texas, giving the Longhorns a loss in coach Tom Herman’s debut. But neither of those losing teams’ fanbases should feel the most misery after Week 1. That belongs to Florida. But the best moment of the weekend, however, occurred when Jake Olson, a blind long-snapper for USC, snapped for the first time in a live game.

Summer's over, America — when you say it is 

Summer, we‘re told, ends unofficially on Labor Day, officially on the fall equinox (Sept. 22) and psychologically on the night before school starts. But Americans don’t agree on summer any more than they agree on politics. Summer’s a state of mind, and you don’t need a calendar to know when it’s over. Summer’s over when you unpack the beach bag and find the coconut oil has solidified. It’s over when you take the boat out of the water. It's over the first time you’re once again stuck behind a school bus. You hear it in the silence: no ice cream truck jingle, no life guard’s whistle, no cicada’s song. Jillian Anderson, a native Ohioan who lives in leafy Brooklyn, says it best. “Summer is over when I say it’s over."

Contributing: Associated Press