Thousands rally in U.S. cities; 1 killed, 3 injured in stabbing at University of Texas; Trump says he would meet with North Korean leader "if it would be appropriate;" and more headlines for your drive home Monday, May 1, 2017.

Thousands of people in US rally against Trump, for workers

Thousands of people chanted, picketed and marched on cities across America as May Day demonstrations raged against President Donald Trump's immigration policies.

Police in Oakland, California, arrested at least four activists who chained themselves together to block a county building. More than 100 other activists there demanded an end to what they called a collaboration between county law enforcement and federal immigration agents.

Despite the California clash, the initial rounds of nationwide protests were largely peaceful as immigrants, union members and their allies staged a series of strikes, boycotts and marches to draw attention to the importance of immigrants in the United States. The demonstrations on May Day, celebrated as International Workers' Day, follow similar actions worldwide in which protesters from the Philippines to Paris demanded better working conditions.

1 dead, 3 injured in stabbings at University of Texas

An attacker with a machete-like knife fatally stabbed one person and wounded at least three others Monday on the University of Texas campus, and authorities said a suspect was in custody.

Student Rachel Prichett said she was standing in line at a food truck outside a gym when she saw a man with a large knife approach the person standing behind her.

"The guy was standing next to me," Prichett said. "He grabbed him by the shoulder and shoved the knife in it. I just started running as fast as I could."

No cut in salt, fewer grains: Gov't eases school meal rules

LEESBURG, Va. Schools won't have to cut more salt from meals just yet and some will be able to serve kids fewer whole grains, under changes to federal nutrition standards announced Monday.

The move by the Trump administration partially rolls back rules championed by former first lady Michelle Obama as part of her healthy eating initiative.

As his first major action in office, Agriculture Secretary Sonny Perdue said the department will delay an upcoming requirement to lower the amount of sodium in meals while continuing to allow waivers for regulations that all grains on the lunch line must be 50 percent whole grain.

Schools could also serve 1 percent flavored milk instead of the nonfat now required.

Trump willing to meet with North Korea's Kim Jong Un

President Donald Trump says he'd be open to meeting with North Korean leader Kim Jong Un, under the right circumstances.

Trump tells Bloomberg News in an interview Monday, "If it would be appropriate for me to meet with him, I would, absolutely, I would be honored to do it."

Tensions with North Korea have escalated dramatically in recent weeks as American and other intelligence agencies have suggested the country was readying for a possible nuclear test.

The Trump administration has said all options, including a military strike, are on the table.

Trump says that "most political people would never say" they'd be willing to meet with Kim. But he adds: "I'm telling you, under the right circumstances, I would meet with him. We have breaking news."

But White House spokesman Sean Spicer says he doesn't see that happening anytime soon. He says Kim would have to show signs of "good faith." But Spicer isn't elaborating on exactly what conditions would have to be met.

Reports: Fox News owner joins race to buy Tribune media

NEW YORK Fox News owner 21st Century Fox and a New York investment firm are in talks to buy TV station operator Tribune Media, according to several reports.

A successful bid would keep Sinclair Broadcast Group Inc., another TV station operator that is also reportedly pursuing the company, from snatching up Tribune. Blackstone, a private equity firm, is said to be putting cash toward creating a joint venture, while 21st Century Fox would contribute some TV stations, according to the reports.

21st Century Fox owns and operates the Fox network, FX cable channel and 28 TV stations. Adding Tribune would give 21st Century Fox control over more local TV stations, most of them in major cities. Tribune owns or operates 42 stations across the nation, including WPIX in New York, KTLA in Los Angeles and WGN in Chicago. It also has stakes in the Food Network and job-search website CareerBuilder.

Several of the stations that Tribune owns are affiliated with Fox and air the network's primetime shows such as "Empire" and "The Simpsons."