It is unsafe and irresponsible the FDA does not require companies to label their products to inform consumers their products are processed on the same shared equipment as the food they are allergic to. Ultimately, if one small piece of that food allergen gets into a "safe" food the person can still go into anaphylaxis shock.
"FALCPA does not require such advisory statements nor does it require statements containing any information about possible cross-contamination of the food item" (Kids with Food Allergies, 2011).
Reference
Kids with Food Allergies. 2011. Frequently asked questions about the food allergen labeling and consumer protections act of 2004. Retrieved November 2, 2014 from http://www.kidswithfoodallergies.org/resourcespre.php?id=50#sthash.4eLSa...