Coe had to draw dozens of chemical structures in indelible ink to make transparent slides.

FORBES: Magazine Article

People were seen dipping their thumbs into pads of indelible ink after voting as an anti-fraud measure.

BBC: Morocco goes to the polls

Some polling stations reportedly even ran short, for a time, of the indelible ink used to mark voter pinkies.

WSJ: Mary O'Grady: In Elections, Honduras Defeats Ch��vez

Shortly after polls opened, Karzai cast his vote and had his finger stamped with indelible ink, a measure to thwart fraud.

CNN: Afghans head to the polls

In a trend seen across the country, most voters had cast their ballots and dipped their fingers in indelible ink (to signify they had voted) by mid-morning.

CNN: A VOTE FOR PEACE

It argues that all candidates should be given access to the mainstream media and that indelible ink should be used to stop people voting more than once.

ECONOMIST: An overzealous government response to an opposition rally

We're hearing reports that women were told that they would be in serious trouble if the indelible ink that's used to ensure against multiple voting was seen on their fingers.

NPR: Afghanistan Officials Call Election a Success