Edwards returning $10,000 that might be tainted Friday, April 18, 2003 2:36PM EDT By JOHN WAGNER, Washington Correspondent CEDAR RAPIDS, Iowa -- Sen. John Edwards' presidential campaign said Thursday that it is returning $10,000 in contributions from a Little Rock law firm in response to an allegation that an employee of the firm expected her boss to reimburse her donation. Federal election laws prohibit individuals from funneling donations through someone else to hide the source. Doing so could allow the reimburser to exceed the legal contribution limit, recently raised from $1,000 to $2,000. The money in question came from employees...