Revealing mistake: Loder gets scared and tries to get away from Kara. He takes off down the road at a significant rate of speed. Kara uses her super speed to get in front of the car. Loder has to slam on his brakes to keep from hitting her. At the speed Loder was going at he should have either skidded to a stop or hit Kara with his car. Loder is able to stop his car without doing either.
Plot hole: When Kara realizes that Agent Loder is listening in on the conversation, she runs out to his car to stop him. She has Clark's ability of super speed which she uses to get over to Loder's car. As she runs she ends up running through a wooden fence and you can see, through the motion blur of her movement, she neither jumps over the fence or goes around it yet the fence never gets damaged from her running through it.
Audio problem: After Clark tells Lex why he didn't tell him that Lex's father killed his parents Clark finishes his line by saying "...I couldn't live with that." The camera jumps to Clark's right and you can see he says "I couldn't live with that" again only no sound is heard.
Answer: In the comics, Krypto is a dog from Krypton who was used as the passenger in a test launch by Jor-El, Superman's father, before he launched the actual rocket taking his infant son to Earth. Krypto's capsule was involved in a mishap, sending it out of Kryptonian orbit and eventually found its way to Earth where he linked up with the young Clark Kent. Like any native of Krypton, Krypto has superpowers on Earth. In Smallville, the dog is a standard Earth dog who has been experimentally injected with kryptonite, giving him super-strength for a limited period of time, who escapes and links up with Clark (who suggests the name Krypto, ostensibly because of the dog's cryptic origins). It doesn't take too long for the dog's strength to fade, and the Kents decide to keep him, although they ultimately name him Shelby, after a dog that Martha Kent had in childhood.
Tailkinker ★