Yes, I've read how the article blames USPS to favor Amazon. I've also thought about why they are doing this. Why is the USPS of Portland doing this? Are they be

Yes, I've read how the article blames USPS to favor Amazon. I've also thought about why they are doing this. Why is the USPS of Portland doing this? Are they being influenced by Amazon? By the national USPS? By the government? The problem with the mail is the symptom, like a headache. But what is the cause, like a blunt to the head or migraine or a hangover?