An insurance agent accused of helping a Zumba instructor use her fitness studio as a front for prostitution was convicted Wednesday in a case that set off a guessing game in a small Maine town over who was on her customer list.

The city wants young New Yorkers to hear its latest public-health warning loud and clear: Cranked-up headphones can be hazardous to your hearing.

So much so that the city is planning a $250,000 social media and marketing campaign to warn teens that they risk hearing loss from listening to personal music players at high volume, health officials said Wednesday.

The armistice that ended the Korean War in 1953 is, at best, a fragile thing: The countries overseeing it have formally accused each other of more than 1.2 million violations.

But North Korea’s threat to scrap the cease-fire next Monday still matters because the armistice is the key document blocking hostilities on the Korean Peninsula, which technically has remained in a state of war for six decades.

Passengers reacted with shrugs but largely agreed with a new policy announced by the Transportation Security Administration that airline passengers will be able to carry small knives and previously forbidden sports equipment on planes.