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09-04-2013, 03:50 PM
We leave genetic traces of ourselves wherever we go -- in a strand of hair left on the subway or in saliva on the side of a glass at a cafe.http://feeds.feedburner.com/~ff/rss/cnn_us?d=yIl2AUoC8zA</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=R8FjOLuOi_s:3wjxmtm8H3s:yIl2AUoC8zA) http://feeds.feedburner.com/~ff/rss/cnn_us?d=7Q72WNTAKBA</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=R8FjOLuOi_s:3wjxmtm8H3s:7Q72WNTAKBA) http://feeds.feedburner.com/~ff/rss/cnn_us?i=R8FjOLuOi_s:3wjxmtm8H3s:V_sGLiPBpWU</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=R8FjOLuOi_s:3wjxmtm8H3s:V_sGLiPBpWU) http://feeds.feedburner.com/~ff/rss/cnn_us?d=qj6IDK7rITs</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=R8FjOLuOi_s:3wjxmtm8H3s:qj6IDK7rITs) http://feeds.feedburner.com/~ff/rss/cnn_us?i=R8FjOLuOi_s:3wjxmtm8H3s:gIN9vFwOqvQ</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=R8FjOLuOi_s:3wjxmtm8H3s:gIN9vFwOqvQ)
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