Mark Zuckerberg used a booster seat to testify before Congress

Facebook founder Mark Zuckerberg sat in a big-boy seat on Tuesday — as he used a height-boosting cushion during his grilling before the Senate. The 5-foot-7 executive squirmed in a chair that included a 4-inch-thick pad under his behind while being blasted for hours with questions from lawmakers about his social network’s handling of user...