You can use a trademarked logo, product in a legitimate editorial article if you like without prior consent.
I learned this from a "argument" that I had over some photographs I took of a theme park ride for a newspaper article. They claimed I couldn't publish the pictures without their prior consent as the rides were subject to a trademark. The law was that I can use them for legitimate editorial work. If they could block the publication then people could effectively block any news report that showed the product in a negative light.
Best practice is to inform whoever that you are doing an article and ask for any press packs they may have, then forward a copy of the article to the company involved before publication so that any errors can be corrected or any issues you have with the product could be satisfactorily resolved and your article updated accordingly before going to press..
some companies are a nightmare to deal with, others are fine and very cooperative, some can be both !!!