President Donald Trump’s plan to dispatch National Guard troops and immigration agents into Chicago has put many Latino residents on edge. Some people are carrying their U.S. passports. Others are considering whether to openly celebrate the upcoming Mexican Independence Day. Vianney Alarcon said she expects people to be targeted regardless of their legal status. But in an act of defiance, she said she’ll be taking part in the festivities, while bringing along her passport. Alejandro Vences became a U.S. citizen this year. He said that gives him some comfort. Still, he said the anxiety is palpable in his heavily Mexican neighborhood of Pilsen.

Chicago residents are bracing for an influx of military patrols and immigration agents in the coming days. Community leaders have been busy planning protests and advising residents about their rights. Details of the operation were still scant Wednesday, but President Donald Trump has said an immigration crackdown and National Guard deployment were both in the works. The preparations seem familiar in the Democratic stronghold that’s often been in Trump’s crosshairs. Still, leaders of schools, churches and community groups, particularly in immigrant enclaves and Black and Latino neighborhoods, say there’s increased urgency and coordination in preparing for theexpected troop deployment and the deluge of attention that will accompany it.

Millions of Americans are facing record heat with temperatures frequently over 90 degrees Fahrenheit. The heat often impacts people of color and low-income residents the most. Mortality records from cities across the country have shown that heat kills along socioeconomic and racial lines. Experts say planting more trees and creating green spaces can help. In Phoenix, efforts are underway to grow the tree canopy. In New York, laws are being passed to increase the tree cover over the next decade. And in Texas, the Houston transit authority is working to redesign bus stops to provide relief from the heat.

Authorities say an apparent accident involving exposure to gas at a dairy in Colorado has killed six people. First responders found the bodies in a confined space at Prospect Valley Dairy on Wednesday. The Weld County coroner said Thursday that authorities are investigating what kind of gases might have played a role in the deaths. The coroner’s office says the identities of the six victims are being withheld until the families are notified. The dairy is located along a rural road near Keenesburg, about 35 miles northeast of Denver. The U.S. Occupational Safety and Health Administration is investigating.