51.   Speculation that higher interest rates are ahead could weigh on U.S. securities by increasing concern over higher corporate borrowing costs.

52.   Speedway officials have tightened security by discouraging the use of bags and backpacks.

53.   Southern Life will also begin its expansion into overseas securities by allowing foreign fund managers to manage some of its assets.

54.   Steady interest rates have improved the outlook for mortgage securities by diminishing the risk that homeowners will refinance the underlying loans.

55.   Tax lien investments are generally not marketed like securities by brokerage houses.

56.   That has reduced the risk premium attached to Canadian securities by international investors, analysts said.

57.   That view benefited mortgage securities by reducing the risk that another round of interest rate cuts will enable even more homeowners to refinance their loans.

58.   The administration had thought that it could balance politics, diplomacy and security by simply exploring the idea of a limited defense.

59.   The CIA provides security by monitoring local and regional threats.

60.   The FAA and private inspectors test airport security by attempting to take mock weapons through checkpoints.