العثور على كبسولة تحوي مادة مشعة على شاطىء الاوزاعي

This either comes from Israel or more likely Cyprus given the sea currents. They need to take it back.

True, that. I remember there was a big scandal sometime in the '90s when they found shipping containers full of radioactive waste from Europe in our ports. This is a nothing burger by comparison.

A quick search for "USA DOT 7A TYPE A RADIOACTIVE MATERIAL" reveals that the cylinder is used to contain Cobalt-60, which is a non-fissile, radioactive isotope of Cobalt, used mainly in cancer treatment. Any hospital that provides radiotherapy cancer treatment would have plenty of the material as well. The "DOT" indication ("Department Of Transportation") implies that the radiotherapy has been performed outside of the USA by US-affiliated or US-sponsored doctors, as the DOT is responsible for securing the radioactive material and transporting it back to the US where it can be placed in decay yards (in Co-60's case, for 5.3 years, after which it ceases to be radioactive). There are plenty of such medical centres around the region, starting with AUH right here in Beirut.
In other words, no need to freak out people. Nobody was trying to kill us.
However, I do want the person(s) responsible for this canister washing up in Ouzai to be traced and charged with gross negligence.