請問一下電視上講終身不得入境美國，有能再入境美國案例嗎？

你要申請美國綠卡，並且通過美國的層層檢驗關卡。... ... ... ...

觸犯美國刑法

在外國被捕後被遞送回美國受審及刑罰

基本上是不太可能

也很少有破例

Yes, there are many cases where the people were banned for life entering the U.S. it can happen for serious crimes and felony https://www.krqe.com/news/border-report/mexican-ma... 

Also temporary bans could lead to permanent ban but its not the case always: https://www.researchsnipers.com/us-visa-freeze-aff...

sxsmk.nsknklxskl.

除非你偷渡或成為一個對社會有重大貢獻之人才，才有可能重返美國。