From the Minneapolis Star Tribune:

The Obama administration Tuesday opposed Michigan and other states that want to close shipping locks near Chicago to prevent ravenous Asian carp from invading the Great Lakes.

Solicitor General Elena Kagan told the U.S. Supreme Court that heeding the states’ request would endanger public safety while disrupting cargo and passenger vessel traffic.

While acknowledging the carp pose a threat to the lakes and their $7 billion fishery, Kagan said it was unclear that closing the locks immediately was necessary to keep them out. Read more.