Google employs 600 people in its legal department. Once it swallows Motorola Mobility, that number will jump to 800, General counsel Kent Walker told an audience gathered Wednesday for his keynote address at Corporate Counsel‘s 9th Annual GC Conference West Coast in San Francisco.

And while he waxed eloquent about the role lawyers have played in the information revolution that Google helped set in motion, he said his sizable legal staff faces serious challenges. “We’re the heat shield and the diplomats trying to pave the way for the next new technology,” Walker said.