tax query
$tax_query = array( array( 'taxonomy' => 'sources', 'terms' => '469', 'field' => 'term_id', 'include_children' => true, ), );
$tax_query = array( array( 'taxonomy' => 'sources', 'terms' => '469', 'field' => 'term_id', 'include_children' => true, ), );