With Parkland high school graduate David Hogg expected to announce a 60-day, 20-state, 75-stop summer bus tour Monday to push for more stringent gun control laws and to register young people to vote, the 18-year-old found himself facing another daunting challenge that could break the internet if he accepts. Kaitlin Bennett, the Kent State grad who took the internet by storm recently when she posed on campus with an AR-10 strapped across her back, took to social media to challenge Hogg to an arm wrestling contest. (snip) “I have a challenge for you @davidhogg111. Let’s arm wrestle. If I win,...