Which explorer was arrested and taken to mexico by the spanish for traveling to far into the west

Between the world wars eisenhower's presidency the 1960s what is the organizing principle of this list?

The first amendment of the constitution provides all of the following freedoms except oa) religion. ob) right to bear arms. oc) speech. od) press.

In shifting to a defense policy based upon the concept of "flexible response," president kennedy was indicating that he had grave doubts about thevalue of which previous defense policy? a massive retaliationb collective securityc containmentd air power