Numismatic experts say counterfeit coins are rampant. The US Mint says its new laser technology is a means to deter forgeries ...

It is unclear whether Mr. Trump has the power to do this. It is Congress, not the Treasury or the Federal Reserve, that authorizes the manufacture of the nation’s coins, according to the U.S. Mint.

Treasury Secretary Janet Yellen dismissed the idea of minting a $1 trillion platinum coin to raise the debt limit without Congress as a "gimmick" that the Fed may not agree with.

The idea captured the imagination of academics and pundits alike, leading to calls on social media to mint the coin and approving columns from the likes of Joe Weisenthal, now a Bloomberg writer ...