I have not come across any followup article. If I do I’ll be sure to ping you.
http://www.reuters.com/article/domesticNews/idUSN2138226720070821?feedType=RSS&feedName=domesticNews
NY police investigating white powder reports
NEW YORK (Reuters) - New York police said on Tuesday they were investigating suspicious mailings of white powdery substances received by several financial companies in New York City, a police spokesman said.