A new report about sports stadium food may raise fan concern.  ESPN  has been looking at the issue across the country.  The report points out numerous critical violations for 72 percent of the vendors at Cowboys Stadium.  Brett Daniels  with the Cowboys says all have been corrected.  At Rangers Ballpark in Arlington 62 percent of vendors had critical violations.  Ballpark food service vendor Sportservice says they have a proven track record of providing safe, high-quality food. The American Airlines Center report includes employees caught drinking or eating while working in the stand.  An AAC spokesman says they take immediate action to correct any issues.