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"We're impressed with how effective Clear Channel Outdoor's digital billboard networks have been in delivering security messages that have led to the capture of dangerous fugitives," said Brett Hovington, FBI Community Relations Unit Chief. "The versatile technology allows concerned citizens across the country to act immediately when they have critical information for law enforcement."

Shares of Ameron(AMN Quote) were down almost 11%, or $5.19 to $42.16 after the Pasadena, Calif.-based home-materials maker reported a steep drop in first-quarter profit.

Net income of $3.8 million, or 42 cents per share, was down nearly one-third from $9.7 million, or $1.07 per share in the year-ago period. Analysts surveyed by Thomson Reuters expected EPS of 47 cents a share on revenue of $136.8 million.

Ameron said the results were due primarily to a significant fall in demand for steel rebar at the company's 50%-owned steel minimill. Ameron said demand fell due to a drop in construction spending in Arizona, California and Nevada.