SCOTTSDALE, AZ — (Marketwired) — 04/15/13 — Rick Smith, Founder & CEO of TASER International, Inc. (NASDAQ: TASR), today issued the following letter to shareholders:To All TASER Shareholders,It-s been a little over a year since we introduced the camera system with , a new and significant growth opportunity for TASER. This new technology is enabling us to expand our presence in a $10 to $20 billion dollar annual market for public safety technology for which we are uniquely positioned due