Lauren Caspian is the host of In the Know, public radio's third most popular interview program. He's a well-meaning, hypocritical nimrod. He's also a stop motion puppet.Lauren Caspian is the host of In the Know, public radio's third most popular interview program. He's a well-meaning, hypocritical nimrod. He's also a stop motion puppet.Lauren Caspian is the host of In the Know, public radio's third most popular interview program. He's a well-meaning, hypocritical nimrod. He's also a stop motion puppet.