You think wild animal attacks are the problem? Bears and cougars are only snowflakes on the tip of the iceberg. Here's a sample of the real problem:
3. Big Bend National Park (Texas): Imagine a place on the border where law enforcement is ordered by management to allow illegal aliens into the country, and to avoid the border area entirely if crime is suspected. Such is the story at Big Bend, where the park superintendent has chosen to confront crime by surrendering to it. The park has blatantly violated NPS orders to hire law enforcement staff before hiring other personnel, leaving the few remaining rangers understaffed, unsupported, and overwhelmed. Big Bend is a classic example of a preventable ranger death waiting to happen in the park with the largest boundary with Mexico.