Why is the Panama Canal Zone not considered a Toxic Exposure Risk Activity, even with all the evidence, plus 19 Congressmen requesting it?

I'm sure it's a political decision

It was in the PACT act and they took it out. I joined the Military Veterans Advocacy .org, they are fighting to get Panama as well as other locations covered.

I Lived In Panama For A While, When It Was Much Smaller And Cleaner With The City's Population Around 250,000 ; Now It's Around 4 Million, And They're Still Using The Pacific To Dump The Sewage ~ Which Turns The Bay Green With Algae.... So That May Be Somewhat Of The Problem ~~ BTW It's No Longer "The American Operated Canal Zone"; Under The Agreement, It Was Returned To Panama On December 31st, 1999 ~ And If You Think The Panamanians Care About What Our Congress Wants ~ You'd Most Likely Be Wrong. ~ LOL~
It's Now Entirely Their Country And We Can No Longer Control Their Activities. But China Is Now A Problem ~~ Panama's Politicians Sold Them Out And China's Mining The "L" Out Of The Country, Mostly For Gold And Silver, Destroying The Land And The Jungle Areas..... I Still Have Friends And Relatives Living There & We're In Regular Contact.