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Here’s your roundup of the top news in business and tech, plus all you need to know for the week ahead. Even if your March Madness bracket was a flop, at least you can feel good about your news I.Q.

MARCH 31-APRIL 6

What’s Up?

Going Nowhere Fast

Boeing’s grounded fleet of 737 Max jets probably won’t be back in the air anytime soon. A preliminary report on what caused one of the aircraft to crash in Ethiopia last month determined that the pilots followed all of Boeing’s safety protocols. While investigators stopped short of blaming the company for the plane crash, the report does put more pressure on the manufacturer and aviation authorities to figure out what happened — and to make sure it won’t again. Boeing has already lost one order of its 737 planes from Indonesia’s national airline, and the longer it takes to get the jets cleared for flight, the more customers (and money) it stands to lose.

Then Again, Maybe Not

President Trump said on Thursday that he planned to give Mexico a “one-year warning” to stop drug smuggling and illegal immigration or he’ll close the southern border. This was a big step back from a threat he had made the week before, when he said he’d close the border in the next few days. His initial statement was followed by widespread panic. A border closing would seriously harm the American economy, halting the daily flow of $1.7 billion of goods and services between the two countries. This would cause food shortages (where would we get our avocados?) and price spikes. It would also hurt the 500,000 legal workers, students, shoppers and tourists who cross the border each day.