Some donors want a candidate to challenge her on the issues, if only to force her to the left.
Experts are concerned that autonomous vehicles could be susceptible to sinister cybercriminal activity.
Gold slumped to its lowest level in 15 months on Monday, leaving investors split over the near-term outlook as it trades near key technical levels.
English-speaking nations are the most appealing foreign destinations in which to work, with the U.S. taking the top spot.
Doctor Gilbert Mobley wore a hazmat suit and strolled through the world's busiest airport to make a point about Ebola.