Politically active nonprofit groups no longer have to disclose their financial donors to the Internal Revenue Service tax authorities, a move that shields the privacy of wealthy “dark money” donors under new rules enacted by the Treasury Department, reports Reuters.

The details: Treasury Secretary Steven Mnuchin said the IRS doesn't need donors' names and addresses to carry out its duties, and that this policy change won't limit transparency. Conservatives see this as a major win for advancing free speech.