NASA has rejected a warning from the outgoing members of its Aerospace Safety Advisory panel that the International Space Station is an "accident, waiting to happen." Space station manager William Gerstenmaier said on Monday that all the teams working on the station need to have focus and attention to detail, but it's not seriously dangerous. The safety panel pointed out that the battery pack on the station could accidentally vent into the station, which would be catastrophic - NASA acknowledged it was a risk and the Russians will be providing a safer battery design.