Samsung and other firms are likely to tweak the design of their devices to avoid further legal bombshells in America.

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Dr Mahathir's anti-western bombshells may be clumsy, but his political arsenal also contains some sophisticated weaponry, much of it of western design.

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While Charles, more diplomatic as the steward of the business, avoids throwing partisan bombshells, David, who lives in New York City and whose main activities surround philanthropy and politics, is less shy.

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The weak performances of these and other star-vehicles may be bombshells for some studio executives, but they come as no surprise to a growing cadre of academics studying the economics of film making and, more specifically, the bankability of stars.

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