Sierra Leoneans scramble for supplies as a three-day, countrywide lockdown approaches. International medical professionals doubt the move will do much to halt the spread of Ebola.
The measure, approved in rare bipartisan fashion by both chambers, is now headed to President Obama's desk.
Health leaders now say the Ebola epidemic is growing exponentially. That means, if nothing changes in the next few weeks, we could see at least 60,000 Ebola cases by the end of 2014.