RIO DE JANEIRO (AP) — U.S Olympic swimmer Ryan Lochte has apologized for his behavior surrounding a late-night incident at a Rio de Janeiro gas station, saying he should have been more “careful and candid” about how he described what happened. Lochte said in a lengthy post on Instagram Friday that he was apologizing for his role in taking the focus away from other Olympic athletes. “This was a situation that could and should have been avoided,” Lochte said. “I accept responsibility for my role in this happening and have learned some valuable lessons.” The 12-time gold medalist reiterated his view that a stranger pointed a gun at him and demanded money to let him leave. Lochte had called it a robbery; Brazilian