Where did the $1 coins go?

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The United States could save about $150 million a year if it switched from $1 bills to $1 coins. But each attempt to introduce a new $1 coin seems to just fall flat with the public.http://feeds.feedburner.com/~ff/rss/cnn_us?d=yIl2AUoC8zA</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=tXB095rEoLM:VtN2bJC8crE:yIl2AUoC8zA) http://feeds.feedburner.com/~ff/rss/cnn_us?d=7Q72WNTAKBA</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=tXB095rEoLM:VtN2bJC8crE:7Q72WNTAKBA) http://feeds.feedburner.com/~ff/rss/cnn_us?i=tXB095rEoLM:VtN2bJC8crE:V_sGLiPBpWU</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=tXB095rEoLM:VtN2bJC8crE:V_sGLiPBpWU) http://feeds.feedburner.com/~ff/rss/cnn_us?d=qj6IDK7rITs</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=tXB095rEoLM:VtN2bJC8crE:qj6IDK7rITs) http://feeds.feedburner.com/~ff/rss/cnn_us?i=tXB095rEoLM:VtN2bJC8crE:gIN9vFwOqvQ</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=tXB095rEoLM:VtN2bJC8crE:gIN9vFwOqvQ)
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