Papa don’t panic! New York City can be a terrifying place to raise kids, so some devoted dads are fighting their fears by disinfecting subway poles, logging the weights of poopy diapers down to the ounce, and keeping the plastic surgeon on speed-dial in casejunior gets a bad boo-boo. Heard of helicopter moms? Consider these hovering pops Black Hawk Dads. “It’s just better to be safe than sorry,” says Doug, 35, who hand washes cups and plates because he fears the dishwasher releases harmful chemicals, thoroughly cleans shopping carts before letting his 4-year-old daughter sit in them, and stocks his...