TSA collected over $500K in spare change last year. Where does the money go?

The TSA collected $500,000 in spare change last year. But where does it all go?
When asked to empty their pockets at airport security, travelers are quick to oblige placing wallets, cell phones, and spare change in the baskets. In a rush to collect belongings and quickly head to gates for departure, stray coins can be an afterthought for some passengers.
Last year, those afterthoughts totaled $531,395–a substantial increase from the two years prior. In 2011 the TSA collected $488,000, which is up from $409,000 in 2010.
But just where does that hunk of change go? According to the TSA Loose Change Act, “The Transportation Security Administration (TSA) has authority to retain and spend, without annual appropriation, unclaimed money http://www.philly.com/philly/living/travel/20131209_Parade_TSA_Collected_Over__500K_in_Spare_Change_Last_Year__Where_Does_the_Money_Go_.html#6QyzEd7ZkkH9seHi.16