income convenience. if you work on an offshore oil rig you can't run out for a burger so the tax man says your company can feed you tax free. but what about those tech companies? they're often in places with plenty of restaurant options. they say it's all about culture, like at facebook. voted best place to work. >> i feel like facebook is a utopia in the best of ways. the cool thing about facebook's approach to benefits is they're really focused on removing stress from our daily lives so it's things that make me just -- make it easier for me to focus on my work. >> being together, working together, and eating together. >> recent press is going to get the irs more interested in this issue generally. >> tom cryan is a tax attorney who represents companies in cases like this. he says the irs has been investigating perks for years, like the way high level executives fly on corporate jets for their personal use.