www.lesswrong.com/posts/A2kJKqnHhh5Hq4p2S/we-must-remember-that-our-world-contai...

USDA sources describe cage-free shares as a measure of egg-laying hens / the table egg-laying flock, not all chickens in the United States.

• USDA ERS says: "Cage-free hens ... comprise a growing percentage of the U.S. egg-laying flock."
• USDA NASS separately reports that the U.S. produced 9.40 billion broilers in 2025, showing that "all U.S. chickens" is a much broader category than the laying flock used in cage-free reports.

So the sentence is inaccurate as written: it generalizes a statistic about laying hens to US chickens overall.

USDA APHIS gives a different timeline than the post.

• APHIS says the United States and Panama have maintained a barrier zone in eastern Panama since 2006 to keep New World screwworm from moving north.
• Separately, APHIS says New World screwworm was eradicated from the United States in 1966.
• APHIS also says there was a small outbreak in the Florida Keys in 2017 after the 2016 introduction, which means it was not simply "completely eliminated from North America from 2006 to 2023" without interruption.

So 2006 is not the date North America was first "completely eliminated" of screwworm; it is the date of the Panama barrier-zone arrangement, and the Florida 2016–2017 outbreak also breaks the claim's timeline.

Major clinical guidance does not describe cluster headache treatment as "simply illegal" or mainly dependent on psychedelics.

• NICE recommends oxygen and subcutaneous or nasal triptans for acute cluster headache, and verapamil for prevention.
• The NHS likewise says the main treatments include triptans and oxygen, and preventive medicines can include corticosteroids, verapamil or lithium.

Psychedelics have been studied for cluster headache, but the standard recommended treatments are legal, established medicines. So the sentence is inaccurate as a description of what the main treatment problem is.