Packages ride on a conveyor belt during Cyber Monday at an Amazon fulfillment center on December 2, 2024 in Orlando, Florida.The company has just closed a $12 million seed financing, led by venture firm Felicis, with participation from Amazon's$1 billion Industrial Innovation Fund and other investors.Cambridge Terahertz, a Sunnyvale, California-based startup, has developed a 3D imaging system that can see inside unopened packages, enabling retailers to more easily and quickly spot cases of return fraud.It' ...