The travel-agency community has been fuming for years over its inability to sell airline products that used to be included in ticket prices but no longer are, and with good reason. A travel agent’s value is diminished by such a significant limitation. The airlines, in turn, refuse to make those products available through distribution channels they don’t control because of high costs. So what’s the solution?

According to the American Society of Travel Agents, the answer is government regulation. “The airline marketplace is simply not working,” the organization’s senior vice president, Paul Ruden, wrote today on its website. Even though the Department of Transportation (DOT) is considering mandatory disclosure of extra fees for seat assignments, luggage, premium economy seats, etc., it’s unlikely it will force the airlines to sell those products through the currently dominant third-party distribution channels…