It is hard to believe that people who have spent years, even decades, writing about economics are really so fuzzy-minded that they cannot see the difference between protecting consumers from tainted produce and protecting workers from competing products.
Economics writers' contracts are five years long and not extendable. 
mnli hypothesis: Economics writers' contracts are five years long and not extendable.  premise: It is hard to believe that people who have spent years, even decades, writing about economics are really so fuzzy-minded that they cannot see the difference between protecting consumers from tainted produce and protecting workers from competing products.