Covering the "why" inflation is happening.

I was watching the NBC Nightly News last night, and the lead story was about inflation (Is it just me or do they do a segement EVERY night about inflation?). Not ONCE did they explain WHY inflation is happening other than to give a platform to Mitch McConnell to ream the Deomcrats. I'm sure some of this is related to supply chain issues or its somwhat complicated to cover in a two-minute package. Same thing on my local news last night which was even WORSE! Just "inflation" is up with graphics with double digit increases.