BNET -- As the July 4 holiday looms in the U.S., Sanofi-Aventis (SNY) employees aren’t dreaming of barbecues, fireworks and a day off work — they’re worrying about layoffs. Sanofi has used Easter this year, Christmas and July 4 in 2009, and Thanksgiving in 2008 to announce mass layoffs. So when holidays loom, Sanofi workers sweat.
