There is a trivial solution to this. Store your own copy (or hash, or whatever) of the article and don't rank it until your copy is at least a month old.
The idea is still nonesense because some other search engine will show up without this restriction, and any news site would prefer to be listed there, rather than not.
News sites would probably change whatever metadata Google is using to check site age to make their news articles appear one-day-more-than-month old to Google crawlers, all as a part of Search Engine Optimization techniques.