Here comes the most anticipated segment for comparison of these two characters i.e. Thunderbird (Shaara) vs Uncle Sam superpowers. Powers and abilities define their strength, both physical and mental. So what will happen if these two super characters engage in a fight? Here you can compare Thunderbird (Shaara) vs Uncle Sam powers, abilities, weapons and gadgets. So lets check out Thunderbird (Shaara) Powers and Uncle Sam Powers.Decide who is more powerful!