The American Bar Association's committee on ethics and responsibility announced the decision after jurors discussed trials and proceedings on social media. The ABA said it can be used as a tool to vet potential jurors.
This means that if someone consistently criticizes Wall Street on their social media accounts, they probably won't be picked as a juror for a white-collar crime case.
There are concerns about privacy, but the ABA said it considers social media posts public and enacted a restriction on lawyers "friending" jurors to find out information. Judges are also required to notify jurors that their social media may be monitored.