It is easy. You invite a chef to give his honest and unbiased opinion. After he agreed he has three options:

• bail out and be the coward who eventually has not got the guts to make his (obviously wrong) opininion public
• be the thug who is comfy with people owning deadly weapons and does not care about the death toll
• just say what the press wants to hear and be a hero for the general public

If he has a sound judgement about the objectivity of the reporters he will inevitably choose the last option. It may be different in the US but in Europe the press staff has worked long and hard to earn the title "liar".