:Hi, Twitter is always a little iffy, but these are probably okay. Firstly, images made by an employee of the U.S. government as a part of their duties are automatically in the Public Domain. Secondly, a number of other users here republish twitter images under "Fair use." The first one is ideal, so if this is the case as it looks, use one or more of them for this reason. | :Hi, Twitter is always a little iffy, but these are probably okay. Firstly, images made by an employee of the U.S. government as a part of their duties are automatically in the Public Domain. Secondly, a number of other users here republish twitter images under "Fair use." The first one is ideal, so if this is the case as it looks, use one or more of them for this reason. |