At his best, Aldon Smith is one of the NFL's best pass rushers.In just three pro seasons, the 49ers' outside linebacker has given San Francisco's defense a dynamic element. In his rookie season of 2011, Smith had 14 sacks, then followed up with 19½ in 2012 and 8½ in 2013 while missing five games.But Smith's future with the 49ers now is a bit cloudy, following the latest in some troubling off-the-field incidents. The 49ers had been considering a long-term contract extension for Smith, whose initial contract expires at the end of the 2014 season. But this past weekend, Smith was taken into custody after an alleged incident at Los Angeles International Airport, and was booked on charges of making a false bomb threat.Niners general manager Trent Baalke put out a statement to the media Sunday saying: "We are disappointed to learn of the incident today involving Aldon Smith. As this is a pending legal matter and we are still gathering the pertinent facts, we will have no further comment." 49ers' Aldon Smith Arrested For False Bomb ThreatThe 49ers, of course, will let the matter take its legal course. It could be that Smith eventually will face no charges or not be subject...