One of mankind's greatest achievements launched 50 years ago today, when the Apollo 11 mission blasted off from Cape Canaveral, bound for the moon. Today, Apollo 11 crewmembers Buzz Aldrin and Michael Collins are reuniting at the Kennedy Space Center as special events are held across the country to mark the milestone.    President Trump is ordering that most steel and iron used in federal contracts come from U.S. companies. Trump signed the executive order Monday, mandating that 95 percent of steel be sourced from the U.S., up from 50 percent.    Seventy current and former U.S. Customs and Border Protection employees are reportedly being investigated after inappropriate posts in a secret Facebook group. Customs officials said the employees allegedly made jokes about dead migrants and made sexist comments about Latina Congresswomen.    One candidate for prime minister in the United Kingdom is drawing a line in the sand when it comes to the Special Relationship. Boris Johnson said he would not currently back the United States if it took military action against Iran. US-Iranian tensions have escalated since President Donald Trump opted out of a nuclear deal with the Middle Eastern country when he entered office.    A toddler is dead after falling into a grease trap outside a Tim Horton's restaurant in New York. Rochester police say the three-year-old boy fell through a plastic lid that covered the trap, which is two-and-a-half-feet in diameter. The child was found minutes after being reported missing, but attempts to revive the boy were unsuccessful.    The recent heat wave in Alaska is being blamed for causing salmon deaths in the western part of the state. According to the Department of Fish and Game, water temperatures broke into the low 70s along parts of the Kuskokwim [[ KUHS-ko-kwim ]] River, causing their metabolism to speed up and leading to heart attacks.