June 2, 2015 9:34 pm
The investigation into the horrible Metro Rail accident continues.
The National Transportation Safety Board is the lead agency handling that investigation.
The accident wreckage has now been cleared, loaded onto rail cars and hauled away.
There is a lot of work to be done, as we hear from reporter Adam Tuss with our sister station WTOP Radio.
How the US Mint and NIST are perfecting the money-making process.