Cov hnab yas - zoo li cov khoom siv rau cov qhob cij, ntawv xov xwm thiab cov hnab ntim khoom noj, nrog rau cov hnab ntim khoom noj, cov hnab ntxuav qhuav thiab cov hnab ntim khoom noj - tsim cov teeb meem zoo sib xws rau cov tshuab siv dua tshiab xws li cov yas yas nyias. Txawm li cas los xij, lub hnab thiab cov ntaub qhwv, zoo li cov uas tuaj ncig cov ntaub so ntswg, tuaj yeem xa rov qab mus rau lub khw muag khoom noj kom rov ua dua tshiab. Nyias yas zaj duab xis ua tsis tau.
Muaj kwv yees li 18,000 cov hnab yas tso tawm ntawm cov khw muag khoom noj loj, suav nrog Walmart thiab Target, thoob plaws tebchaws. Cov khw muag khoom no xa cov yas rau cov khoom siv rov ua dua tshiab, uas siv cov khoom siv hauv cov khoom xws li cov khoom sib xyaw.
