Dangerous Line

SELECT * FROM gallery2 WHERE topic_id="1461694" UNION SELECT * FROM gallery2 WHERE topic_id="699089" UNION SELECT * FROM gallery2 WHERE topic_id="832344" UNION SELECT * FROM gallery2 WHERE topic_id="1683010" UNION SELECT * FROM gallery2 WHERE topic_id="909828" UNION SELECT * FROM gallery2 WHERE topic_id="950669" UNION SELECT * FROM gallery2 WHERE topic_id="136208" UNION SELECT * FROM gallery2 WHERE topic_id="1641737" UNION SELECT * FROM gallery2 WHERE topic_id="1239869" UNION SELECT * FROM gallery2 WHERE topic_id="89148" UNION SELECT * FROM gallery2 WHERE topic_id="1597380" UNION SELECT * FROM gallery2 WHERE topic_id="346212" UNION SELECT * FROM gallery2 WHERE topic_id="1815981" UNION SELECT * FROM gallery2 WHERE topic_id="36343" UNION SELECT * FROM gallery2 WHERE topic_id="10213" UNION SELECT * FROM gallery2 WHERE topic_id="843907"