New U.S. Attorney, Zane David Memeger, sworn in

Zane David Memeger was sworn into office Monday as U.S. Attorney for the Eastern District of Pennsylvania, in a ceremony attended by U.S. Attorney General Eric Holder and U.S. Senators Arlen Specter and Robert P. Casey, Jr.

President Obama nominated Memeger in April and the U.S. Senate confirmed him in May. Between stints in private practice, Memeger was an Assistant U.S. Attorney from 1995 to 2006, and he was part of the team that prosecuted former Philadelphia mob boss Joseph Merlino.

Memeger said the office under his direction would focus on terrorism, "quality of life" crimes involving guns, drugs and violent robberies, white-collar financial crimes and fraud, and political corruption.

Memeger, who now leads an office of nearly 250 prosecutors and support staff, described the inspiration that he draws from former U.S. Attorney General Robert Kennedy's legacy of public service.

"Simply put, you want to use your talents to make your world a better place for those who will come after you," he said.