Atlanta’s airport said it was tightening security following allegations that two men with ties to Delta Air Lines smuggled more than 130 firearms from Georgia to New York over the course of eight months last year.

The Atlanta International Airport said it has expanded “random inspections” and increased its police presence. Six new officers recently started work at the airport, though their positions were budgeted before last month’s gun-smuggling bust.

Revelations about the gun-smuggling investigation in Atlanta have drawn sharp reactions from US Senator Charles Schumer of New York and Brooklyn District Attorney Ken Thompson. Schumer called on the Transportation Security Administration to require airports nationwide to physically screen airline and airport employees before they enter secured areas.

“When guns, drugs, and even explosives are as easy to carry on board a plane as a neck pillow, then we have to seriously — and immediately — overhaul our airport security practices,” Schumer said in a statement. “In this day and age of terrorism, rampant drug dealing and gun smuggling, we just can’t be too careful.”