The Internal Revenue Service is alleging that a Pittsburgh Steelers Hall of Famer owes more than half-a-million dollars in back income taxes.

The IRS filed a civil action Monday in federal court in Pittsburgh. It accuses Mel Blount of owing more than $631,000 in federal income taxes between 1994 and 2006.

Blount did not immediately return a message left today at the Mel Blount Youth Home, about 30 miles southwest of Pittsburgh.

The 61-year-old Blount was a key member of the Steelers' first four Super Bowl teams, and his 57 career interceptions remain a team record.

Blount retired in 1983 and was enshrined in the Pro Football Hall of Fame in 1989.

The Pittsburgh Symphony Orchestra says it will be running a $670,000 deficit by 2010.Symphony president Lawrence Tamburri offered that forecast Monday to the board of the Allegheny County Regional Asset District. The board doles out money raised by the county's 1 percent sale tax to regional assets like libraries and arts groups.The symphony wants $1.25 million in RAD funds for 2010, an increase from $1 million this year.Tamburri says the stock market downturn has hurt the symphony's endowment, and the economy has also slowed ticket sales, fundraising and, possibly, state funding.The symphony cut 11 staff and froze salaries of senior managers this year to save $400,000. Next year, all staff will have a pay freeze.

Allegheny County officials might use global position system technology to keep sex offenders away from schools and parks.The county is considering the technology because a federal judge earlier this year struck down an ordinance preventing sex offenders from living near child care or community centers, county parks and schools.The ordinance raised constitutional concerns about the freedom of sex offenders to live where they choose.County Councilman Vince Gasteb says he's working with county prosecutors on a plan to use GPS to notify police if sex offenders go near schools or other child-safe zones.An American Civil Liberties Union attorney says individual GPS monitoring is better than the ordinance the ACLU sued to overturn.