Now Playing: 06-05-14 Marketplace Tech - High tech strings

Do I detect a hint of sarcasm? On today's show, Noah Smith, an associate professor of Language Technologies and Machine Learning at Carnegie Mellon University, talks about building a program that detects sarcasm. Plus, we visit Jim D’Addario, CEO of the D’Addario strings company, to talk about manufacturing technologies and the company’s new, super-strong guitar string