What about the US citizens who smuggle drugs into America?

Trump agrees to pause tariffs on Mexico, Canada after they pledge to boost border enforcement. Who prosecutes the US citizens that cross the border to smuggle drugs into America.

https://ground.news/article/trump-pauses-tariffs-on-canada-for-at-least-30-days-trudeau-says_3d84c2?utm_source=mobile-app&utm_medium=newsroom-share