janet shanlian is there and has been covering it for us. janet, good evening. >> reporter: firefighters are making some progress out here, but the winds are picking up once again and that is a problem. today fire teams became much more aggressive about setting preventative fires around the rim of the lab. that is deliberately burning trees and brush in order to rob the wildfires of their fuel. they're also tackling this from the air, helicopters are dropping water and the epa has supplied a radiation detecting plane. they've also tested the air here from the ground and so far the results indicate nothing is coming from the lab. the lab is still closed, the town is still closed. and today the fire chief doug tucker told me that while he's shooting for saturday or sunday, it seems very likely that they will not lift that mandatory evacuation order until after the holiday weekend. and as long as this community is closed, it seems likely the lab will remain closed as well. brian? >> a very dicey situation. janet, great work out there again toda