If you need more proof that the future is now (and that Big Brother is always watching), Delta airlines have announced that it’s trying a new biometric check-in feature that allows passengers to forego boarding passes. Instead, they scan their fingerprints to get on the plane, Engadget reports. The pilot program is already being tested with Delta SkyMiles members, who aren’t boarding a plane using the biometric scan but rather Delta’s Sky Club at Ronald Reagan Washington National Airport…