Layoffs at DuPont and AT&T. Both cite the economic slowdown and falling sales:

DuPont Co., Delaware's largest private employer, says it's going to cut 2,500 jobs in response to falling sales, especially in automotive and construction products. Release here.

AT&T Corp., Dallas, says it'll lay off 12,000 phone and other workers (4 percent of total), but will keep hiring in wireless, video and broadband. Release here.