Is Covid-19 an intentional biological attack? The truth is, we don't know. Since we do not know, the principles of abstract reasoning require we not rule out that possibility. Taking that into consideration is not the same as suspecting anything, because the truth is, we do not know. People who refuse to acknowledge that possibility include those whose opinions range from scoffing and ridicule to outright condemnation and calls for Soviet-style re-education. These people have no business occupying any position in our government, for the simple reason that anyone can be wrong.