The Supreme Court announced Monday it will step into a dispute over the Navy's use of sonar off the Southern California coast and its potential harm to dolphins and whales.

Acting at the Bush administration's urging, the court will review a federal appeals court ruling that limits the use of sonar in training seminars. The administration says the decision by the 9th U.S. Circuit Court of Appeals in San Francisco jeopardizes the Navy's ability to train sailors and Marines for service in wartime.

The government also contends that national security interests can trump those of marine mammals, and that its use of mid-frequency sonar in training exercises hasn't caused any documented harm to dolphins or beaked whales in the waters where they're conducted. Arguments will take place in the next court term, beginning in October.

A bigger percentage of students graduating from top law schools in 2007 took jobs at NLJ 250 law firms than those graduating in 2006.

Columbia Law School landed in the No. 1 spot again as the school thatsent the greatest portion of graduates to NLJ 250 law firms, withnearly 75 percent of its students in 2007 taking jobs among thenation's largest law firms. The school ranked No. 1 last year, when69.6 percent of its graduates went to NLJ 250 law firms. Boston CollegeLaw School rounded at the list of the top 20 go-to law schools, with36.8 percent of its 261 juris doctor graduates in 2007 heading forfull-time jobs at NLJ 250 law firms.

All together, the top 20 law schools that NLJ 250 law firms relied onmost to fill their first-year associate ranks sent 54.9 percent oftheir graduates to those firms, compared with 51.6 percent in 2006.

This year's list of go-to schools was compiled from recruiting information that law firms provided on the 2007 NLJ 250, The National Law Journal's annual survey of the nation's largest law firms.

In 2007, the top 20 schools sent 3,511 of their graduates to work asfirst-year associates at NLJ 250 law firms. Total graduates among thoseschools in 2007 equaled 6,395. In 2006, the 20 go-to law schools sent3,561 to NLJ 250 law firms out of 6,902 graduates.

Making a big jump in its percentage of graduates accepting positions atNLJ 250 firms was Northwestern University School of Law. It took theNo. 2 spot, compared with No. 11 the year before. Some 73.5 percent ofits 2007 graduates went to NLJ 250 firms, or 172 graduates out of atotal of 234. The year before, 143 graduates out of 265 went to NLJ 250firms, which equaled 54 percent.