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spec: " Walker noted that department officials had learned from their Deepwater problems and are moving more cautiously on the program , which covers both physical fencing and beefing up cameras , sensors and other technology on the border , and have been allocating funds for only small portions at a time . Then release the mouse button when you have it in position . Difficult but not impossible . He even knows exactly when and where it will strike - - and possibly how to stop it . Also known as lady beetles or ladybirds , these insects ( coccinellids ) have rounded bodies and bright red , orange , or yellow wing covers , which usually bear an array of contrasting black spots or other markings . In the 1970s , Schroeder and two collaborators undertook a major acoustical study of more than 20 famous European concert halls . For designers , it was like trying to type a paragraph without using , say , the letter " d. " Now that improved digital recordings , electronic instruments , and home theater systems are readily available , demand has increased for superior acoustic surroundings for making and listening to recordings . The condition must evaluate to true or false . If the drain is sluggish , treat it as you do HVAC drains , with routine cleanouts.If the tank is gas-fired , confirm that the exhaust vent and shield are in place and functioning properly . " The team 's approach differed significantly from that used by Adleman and others who have taken up the challenge of molecular computing .