Thermo Fisher to buy Life Tech for $13.6 billion

By Bill Berkrot and Susan Kelly NEW YORK (Reuters) – Thermo Fisher Scientific Inc on Monday agreed to buy Life Technologies Corp for $13.6 billion in a deal that would make it one of the top two companies in the hot field of genetic testing. The pact values Life Tech at $76 per share, a 12 percent premium, and is one of the year's biggest corporate takeovers. …