According to recent studies in the United States, researchers are concerned that the fast-paced inundation of electronic news via social networking sites such as Twitter may have a harmful impact on the ability of users to feel compassion for the subjects of stories and updates. Experts suggest that people need time to assess emotions and understand events and that the rapid pace of digital news updates doesn't allow for adequate reflection, thereby training the brain to be unresponsive (David Derbyshire, "How the Twitter Age of Rolling Information Has 'Robbed Fans of Compassion,'" DailyMail.co.uk, June 3, 2009).