Sasha, I believe I may be able to answer your question in part. As a long-time journalist, I can attest that news writing is more streamlined than literary writing and so sometimes extra words are eliminated from a sentence, even though they may be correct grammatically, in order to tighten up the writing and provide more "punch." There is also a trend to write "conversationally" in journalism, especially in broadcast journalism. Literary writing tends to be more passive and more expressive, whereas news writing is active and tightly edited.

Of course, there is also a lot of bad writing in news these days where the grammar is poor because an uneducated intern was put in charge of writing the headline. A good news-writer must be familiar with proper grammar so that he can know which rules to break and when.

Writing good news headlines is actually something of an art form. There are many textbooks written expressly for journalists, which instruct us on how to edit writing so that the news can be delivered as clearly and succinctly as possible. If I had saved up all the red ink editors used on my writing, it would probably fill up a few bath-tubs!

Here is a good example of what I am describing:

http://englishforjournalists.journal...2/write-tight/

Another reason for writing tightly, other than succinctness, is because stories have to be trimmed to fit whatever space or time has been allotted by the editors or producers.

http://ijnet.org/stories/how-write-b...t-news-stories