I don't know if washing would help. It may make it worse by exposing more of the lead (if it's in the paint or underneath the paint, over-handling or washing may cause it to chip away and expose more lead). I don't know really know though with bags; I am just guessing from what I know about toys. Toys with lead in them (and yes, even new toys are found with lead in them all of the time) are a problem as they get older and the paint starts to either chip or rub away.
Lead isn't anything to play around with. I'm concerned that the food may absorb the lead, not just stay on the surface to be washed off. I know our bodies absorbed a lot of lead from the air when leaded gasoline was used.
I have a young child so any lead is a big concern. Just the fact that lead is used in bullets and my husband is a police officer is enough for doctors to been concerned enough to have her tested (this was before we started using reusable bags).
I hope the concern is actually small and I am overreacting. However, until they are showed to be lead free, I think I will go back to plastic
. I don't know what to do with all of the bags I have now though. I don't want to throw them in the landfill if they may have lead (concern mentioned on the news), but I don't want them around my house either.
When stores start certifying that they are lead free, I will buy new lead free ones.