Who helps keep us safe? -- Lots of people help keep us safe -- Who are they? -- Police officers keep us safe -- Doctors keep us safe -- Families keep us safe -- Fire fighters keep us safe -- Teachers keep us safe -- Lifeguards keep us safe -- Crossing guards keep us safe -- Nurses keep us safe -- Bus drivers keep us safe -- Day care workers keep us safe -- Who helps keep us safe? -- Lots of people! -- Words to know.