A method and apparatus for operating a camera are provided herein. One or more thaxtomins are applied to algae contaminated environments in a predetermined amount effective in controlling, reducing andor killing algae. In certain example embodiments, a high aspect ratio mineral lamellae is separated by an organic \u201cglue\u201d or polymer. One or more snap-locking mechanisms are located on the side walls so that adjacent underdrain blocks are interconnected by the locking mechanisms when snapped in place. To this end, the content to be protected is searched on the Internet, at least the hash ID of each data record offered as a search hit is stored, this hash ID is linked to substitute content data, and queries of remote computers for the file to be protected are responded to by offering the modified data record. The control voltage to be input to the voltage controlled oscillating unit is monitored, and it is determined whether or not a level of the monitored control voltage deviates from a set range determined in advance, and an unlock detection signal is output.