 There are distinct signs of trouble. According to a Siena College poll, which we first reported in February, of the young men wagering online, nearly half felt they were betting more than they should. In the five-plus years after New Jersey legalized online sports gambling, calls to the state's problem gambling helpline nearly tripled. The largest caller demographic, 25 to 34. This is a public health emergency happening, and we're not talking about it yet.