My view is if you want to get to know a subject that is giving you difficulty. PhotoRead other books on the subject by different authors although it's not necessary to activate them.
Use multiple passes with activation and only slow down for analytical reading when you have built the foundational knowledge of the subject.
Those examples are only two of many possible reading circumstances. Newspapers are for general information might only interest you for a short while and then be forgotten. Other subjects where we are looking at facts and figures are going to require analytical reading if we need to apply them somewhere in our jobs however a casual general knowledge reading is only required if you just want to keep up with the industry.
If you want to read a good book on the subject of levels of reading and the how to of Analytical reading (which you find has been incorporated into the PhotoReading system by way of multiple activation passes) Get a hols of How to read a book By Mortimer J Alder & Charles Van Doren
Alex