The flag of the United States is one of the nation's most widely recognized symbols. Within the United States, flags are frequently displayed not only on public buildings but on private residences. The flag is a common motif on decals for car windows, and clothing ornaments such as badges and lapel pins.
Ignorance(noun) the condition of being ignorant; the want of knowledge in general, or in relation to a particular subject; the state of being uneducated or uninformed. Ignorance(noun) a willful neglect or refusal to acquire knowledge which one may acquire and it is his duty to have.
Ignorance is the antonym of knowledge, and if knowledge is light, ignorance is considered to be darkness. Ignorance is a state that can be transformed into a state of being knowledgeable. This is why if someone acts in ignorance, he is forgivable. You know that he has not acted willfully but because he lacked knowledge.