Airport security breaches on Christmas Day; separate incidents in Phoenix, Newark

The security of America's airports is under scrutiny Friday after two separate incidents on Christmas Day. One incident occurred at Sky Harbor Airport in Phoenix, and another, 2,400 miles away at Newark Liberty Airport in New Jersey.

Both facilities spent big money to keep anything like this, or something worse, from ever happening.

In both instances the suspects managed to scale a portion of perimeter fencing that surrounds each airport, and actually make their way on to the tarmac. The incidents are raising questions about how this could happen, and what it means for the safety at airports around the country.

Robert Edward Bump, 49, is seen on surveillance video running onto the tarmac just moments after a Southwest Airlines plane landed.

Bump climbed over a nine-feet tall, barbed-wire topped fence, making his way onto the Phoenix airport grounds. After banging on the engine of the plane, Bump then sprawled out his arms and wandered past the aircraft as police officers pulled up and surrounded him.

James Holmes, of the Phoenix Police Department, said, "Mr. Bump was immediately apprehended, taken into custody. Officers determined immediately that he appeared to be under the influence of at least alcohol and possibly drugs."

Bump was apprehended by police just four minutes after he was initially spotted. Officials don't know what motivated him, but at a press conference on Thursday, the focus was on how Bump was able to successfully reach a plane.

After a similar incident in 2005, the airport spent $10 million to upgrade its perimeter security. This is the second perimeter security breach since then.

On the same day, at Newark Airport, a man managed to make his way across two runways and reached the terminal. Port Authority of New York and New Jersey Police Chief Louie Koumoutsos said it was "an unacceptably long time for officers to locate a suspect."

Newark Airport also underwent a multimillion-dollar security revamp -- that system may have failed to notify law enforcement of the intrusion.

Peter Goelz, former managing director of the National Transportation Safety Board, said, "We can spend another $100 billion to make every airport 100 percent secure, and it won't quite be 100 percent."

Since Sept. 11, there have been over 25,000 security breaches at airports across the country.  Goelz argues technology is just one factor in keeping airports secure. He said, "You cannot prevent these kind of intrusions. It's simply impossible so what you have is a layered and measured response."

Officials at Phoenix Sky Harbor International Airport believe their system worked properly, CBS News' Terrell Brown reported on "CBS This Morning." They are proud of how the situation was handled, and insist that Bump was the only person at risk on Wednesday.