Interesting findings from a recent research:
http://www.princeton.edu/~jns/papers/Shapiro_Fair_2009_Why_Support_Islamist_Militancy.pdf
…Overall, our results strongly suggest that support for Islamist politics does not
predict support for Islamist militant organizations…
Several conclusions of this study cast considerable doubt on the conventional wisdoms about support for Islamist militancy in Pakistan. First, support for militant organizations is not correlated between different types of militant groups. This finding suggests that Pakistanis distinguish between providers of political violence.
Second, there is no clear connection between subjective or objective measures of
economic strength and lower levels of support for the Taliban and al-Qa’ida. …Thus popular prescriptions that Pakistanis will support normalization of relations with India when they feel confident in their country’s economic and other measures of national power are not supported by these findings.
Third, religiosity is a poor predictor of support for militant organizations. A
preference for more Shari’a law does not predict support for militant organizations…
The bottom line is that there is strikingly little support for conventional views
about why Pakistanis support Islamist militancy. …Commonly suggested palliatives for militancy such as economic development, greater democratization, offering alternatives to religious education, appear unlikely to reduce support for Islamist militancy.
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I guess being a Muslim in substance OR appearance does not mean one being sympathetic to terrorism, does it?