Despite blatant outrage from the human rights community, South Korea may soon pass a bill that could jail activists for sending propaganda leaflets over the border into North Korea. Now, as opposing Seoul lawmakers stage a filibuster in the country’s National Assembly, a prominent U.S. politician has also spoken out against the bill.

On Friday, New Jersey Rep. Chris Smith criticized Seoul for considering the “anti-leaflet” bill, which carries fines of up to 30 million won ($27,200) or up to three years in prison. Legal experts say the bill’s vague language means that it could also be used to crack down on other activism, like USBs sent to North Korea or even money transfers between North Korean defectors and their family members still in the DPRK.