Evidence https://www.dhs.gov/news/2017/06/13/written-testimony-cbp-house-appropriations-subcommittee-homeland-security-hearing …pic.twitter.com/BQO6m4DRW3
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There are no claimed experts that dispute this... https://www.cbp.gov/newsroom/video-gallery/video-library/walls-work …
Unlike the climate change skeptics, the border barrier skeptics: 1) do not have experts publicly supporting the politicians claims 2) do not show their work
Do you foresee them using a trebuchet to toss loads of several-hundred pounds or do you think they'll hire washed-up pitchers to get it across one packet at a time? All of this is surely more obvious than simply walking across a border.
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