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.
Being Ignorant is Being Unaware of a Topic. Say for example that you had a warrant out for your arrest. You were unaware of this warrant and continued to live your life normally. During that period of normalcy, the police caught on to your location and finally served the warrant.