That looks like a FUD article, but still "Can" doesn't mean "will"!
Also, at least in Indian cooking, most spices are cooked very well, which will kill any trace of Salmonella. So, unlike the spinach and lettuce that get recalled regularly from the grocery stores, if you are using these spices for Indian recipes, you are totally fine (w.r.t salmonella).
I'd be more worried of spices that are laced with pesticides.
Well, we have been buying spices from Indian grocery stores in Northern California for the last 15 years. BTW, the better known brands of Spices that you get in larger supermarket chains also are imported from India/Vietnam etc. So, not much of a difference other than the price for the brand/packaging, the supermarket expenses and margin percentage.
