A video depicts an imagined Donald Trump presidency, as President Barack Obama delivers jokes — with Trump in the audience — at the 2011 White House Correspondents dinner. Manuel Balce Ceneta/AP hide caption

Jeff Hebert, who is leading New Orleans' efforts to adapt to rising sea levels, stands at the site of the future Mirabeau Water Garden, a federally funded project designed to absorb water in residential Gentilly. Tegan Wendland/WWNO hide caption

New Jersey Transit has added audio and video surveillance to some of its trains for security reasons. Critics say it's an invasion of privacy. Joel Rose/NPR hide caption

Boxes of white button mushrooms. Scientists have used a popular gene editing tool called CRISPR/Cas9 to snip out a tiny piece of DNA from one particular gene in a white button mushroom. The resulting mushroom doesn't brown when cut. Adam Fagen/Flickr hide caption

Mexican chef Pati Jinich shares her recipe for shrimp enchiladas from her cookbook, Mexican Today. Courtesy of Rux Martin Books/Houghton Mifflin Harcourt hide caption