Never mind that at least 50 identified ISIS sympathizers are currently working at recently bombed Brussels Airport. Meanwhile Obama and his corrupt EPA make no secret that global climate change is our nations first priority when it comes to our national security At Senate Commerce Committee session (VIDEO BELOW), lawmakers heard that only three airports in the United States require their employees to undergo a security check before they begin their work day. Atlanta, Miami, Orlando. What about the other 297 airports nationwide?  asked committee co-chair Senator Bill Nelson (D-Florida).TSA (Transportation Security Administration) head Robert Neffenger answered that while the TSA has  increased the inspection of employees five-fold in the last five months,  more needs to be done.Neffenger said that all airports were asked to provide a report by the end of the month assessing their vulnerabilies.A 2015 TSA committee concluded most airports could not afford daily employee screening. In addition, they said the full screening would not  appreciably increase the overall system-wide protection. No single measure can provide broad-spectrum protection against risks or adversaries,  the committee concluded.  Therefore, risk-based, multi-layered security offers the greatest ability to mitigate risks through the application of flexible and unpredictable measures to protect commercial aviation. The report argued daily screening  is incapable of determining a person s motivations, attitudes and capabilities to cause harm, among other limitations.  SEN BILL NELSON ASKS ABOUT AIRPORT SCREENING OF EMPLOYEES:  