Google News is chewing up huge amounts of data in one very annoying bug.
A Google community manager acknowledged the problem in September, after unhappy users reported data usage as high as 24GB, resulting in excess charges that amounted to hundreds of dollars.
Some users said they had the Google News app set to "download via Wi-Fi only," but were still stung by the bug.
To help alleviate the problem, users have switched off background data for the app, which you should do too. Google is yet to come up with a fix.