For decades, law enforcement has tried to keep one step ahead of terrorists who target large groups and venues. But the Las Vegas mass shooting underscored how difficult it is to keep large groups safe despite precautions. The Route 91 Harvest country music festival included plenty of security and many of what today are normal precautions. It is an approach long used by the Secret Service to protect dignitaries. Experts say that after the Las Vegas mass shooting, there will be a reassessment nationwide of how to protect large open space gatherings.

Source: Los Angeles Times October 02, 2017 18:55 UTC