State and local officials met with members of the Senate Homeland Security and Governmental Affairs Committee in Phoenix on Monday for a field hearing on border security. The discussion surrounded how illicit substances like heroin were entering the country and what can be done about it.
Last September, poliovirus type 2 was declared eradicated after the last known case was reported in 1999. Now there are calls to eliminate samples remaining in labs. But with an Arizona lab working to eliminate two other known types, researchers are left in a compromising position.