How did Biden send long-range missiles to Ukraine in secret?

The good time to make momentous decisions is when the world is looking elsewhere. Thus, Joe Biden decided, after months and months of reluctant deliberations, to send the US Army's ATACMS long-range missiles to Ukraine in total secrecy, and he got away with it. The first we knew that these missiles had arrived was when the Ukrainian military fired them at a Russian airbase in Moscow-occupied eastern Ukraine, and President Zelensky confirmed that he had at last got the missiles he had been demanding for as long as anyone can remember. In the past it was relatively easy to check what the Pentagon was about to send to Ukraine because the US defence department very helpfully provided a full list which they made public. ATACMS was definitely not on the last list distributed by email to interested people, like reporters.The acronym stands for Army Tactical Missile System, and the version delivered to Ukraine which launches missiles packed with cluster bomblets has a range of just over 100 miles. The other versions which have missiles with explosive warheads can reach closer to 200 miles. The world was diverted by the Hamas atrocities and Israel's response, so the ATACMS shipment slipped through the net. The Pentagon hasn't said how many they have sent but it's being suggested the number is only about 20, so Ukraine will have to be very selective about what targets they hit. But the first one launched hit an airbase with lots of helicopters on the runways and satellite images indicated they destroyed most of them, with cluster munitions scattering all over the place, some of them failng to detonate. No doubt ATACMS will now feature on every future list and, as Zelensky always pointed out, they could make a big difference in the war.