With the 2016 Summer Olympics in Rio less than three months away, the focus has been on everything but the Games themselves. From the spreading Zika virus to political turmoil, Brazil is grapping with a bevy of issues that have left some to call for the Games to be moved, postponed or even cancelled. Wall Street Journal’s Sara Germano joins “CBS This Morning: Saturday” to discuss. Source

This week the first full-scale test of Hyperloop One – an ultra-high-speed transportation system – was conducted in the Nevada desert. Supporters say it could one day get you from Los Angeles to San Francisco in just 30 minutes. Hyperloop is not the only company vying to perfect an ambitious design which has led to a competition that some are calling the “Hyperloop Wars.” Tim Fernholz, a reporter for the business news site Quartz, joins “CBS This Morning: Saturday” to discuss futuristic transport. Source

CBS News chief medical correspondent Dr. Jon LaPook and CBS News contributor Dr. Holly Phillips join “CBS This Morning: Saturday” to discuss your local supermarket products and their nutritional value. The FDA will reevaluate regulations about these claims, including the definition and use of the word “healthy” on labels. Source

A recent AAA study found an increase in deadly crashes involving drivers who had smoked pot, but another study by the same researchers warns that there is currently no reliable test to determine whether drivers have been impaired by the drug. Kris Van Cleave reports. Source

A New Jersey family is savoring their winnings after their mother, Pearlie Smith, who never gambles, threw caution to the wind and bought some Powerball tickets. Now they are figuring out how to divide the $284 million jackpot among themselves. Jericka Duncan reports. Source

How does sound effects artist Fred Newman conjure such amazing worlds on “A Prairie Home Companion”? He shares some secrets with correspondent Jane Pauley, in a preview of an interview to be broadcast on “Sunday Morning.” Source

The director says there’s something in her new film for viewers on both sides of the political spectrum. Source

Former U.S. Treasurer Rosario Marin says she will not support Donald Trump for president because of his “disgusting” remarks. Marin — a Mexican-born Republican — discusses her reasoning with CBSN’s Josh Elliott. Source

Instagram changes its logo; Macy’s quarterly earnings were lower than expected; and JetBlue is one of Americans’ favorite airlines. CBS News MoneyWatch’s Jill Wagner has the day’s business headlines on CBSN. Source

Investigators believe an enormous explosion and fire at a fertilizer plant in Texas was deliberately set. CBS News correspondent Manuel Bojorquez has the latest from the site of the explosion that killed 15 people in 2013. Source