My father protects for a living, but he is invisible by design. For more than two decades, he watched the halls of a shopping plaza in Koreatown in Los Angeles as a security guard. Three stories of salmon-colored walls with a signature glass skylight, the plaza is a community landmark for Korean immigrants who weathered financial uncertainty, language barriers and other trials that come with forging new ground in a foreign place. In 1997, my father went there looking for a job. Our family had just arrived from the Philippines, and he needed to anchor our landing with steady income. An electrician with no history of security work, he was hired on the spot. Over time, he found meaning in keeping his new life, his family and his shopping plaza secure.