Yes, the media cover up the truth because they only infer news from parties of a diplomatic strategy that are distinguished for marketing in terms of image. For example, you may find news about the seizure of a drug smuggling truck. I don't deny this, but on the other side, many trucks passed easily and calmly, in order to decorate the country's image and prove its efficiency.
It is cherrypicking from the data, to suit the narrative they want to push at the time. We do the same thing when we see a particular bias - because we feel smart catching one, but we don't realized we missed 9 others that manipulated us.